TY  - JOUR
AU  - Dojčinović, Marina
AU  - Prokić Cvetković, Radica
AU  - Sedmak, Aleksandar
AU  - Popović, Olivera
AU  - Cvetković, Ivana
AU  - Radu, Dorin
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6585
AB  - The effect of the shielding gas arc welding process on the cavitation resistance of the three-component aluminum alloy AlMg4.5Mn and its welded joints was investigated. Welding was performed using the GTAW and GMAW processes in a shielded atmosphere of pure argon. After the welding, metallographic tests were performed, and the hardness distribution in the welded joints was determined. The ultrasonic vibration method was used to evaluate the base metal’s and weld metal’s resistance to cavitation. The change in mass was monitored to determine the cavitation rates. The morphology of the surface damage of the base metal and weld metal due to cavitation was monitored using scanning electron microscopy to explain the effect of the shielding gas arc welding process on their resistance to cavitation.
PB  - MDPI
T2  - Materials
T1  - Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy
IS  - 13
SP  - 4781
VL  - 16
DO  - 10.3390/ma16134781
ER  - 

@article{
author = "Dojčinović, Marina and Prokić Cvetković, Radica and Sedmak, Aleksandar and Popović, Olivera and Cvetković, Ivana and Radu, Dorin",
year = "2023",
abstract = "The effect of the shielding gas arc welding process on the cavitation resistance of the three-component aluminum alloy AlMg4.5Mn and its welded joints was investigated. Welding was performed using the GTAW and GMAW processes in a shielded atmosphere of pure argon. After the welding, metallographic tests were performed, and the hardness distribution in the welded joints was determined. The ultrasonic vibration method was used to evaluate the base metal’s and weld metal’s resistance to cavitation. The change in mass was monitored to determine the cavitation rates. The morphology of the surface damage of the base metal and weld metal due to cavitation was monitored using scanning electron microscopy to explain the effect of the shielding gas arc welding process on their resistance to cavitation.",
publisher = "MDPI",
journal = "Materials",
title = "Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy",
number = "13",
pages = "4781",
volume = "16",
doi = "10.3390/ma16134781"
}

Dojčinović, M., Prokić Cvetković, R., Sedmak, A., Popović, O., Cvetković, I.,& Radu, D.. (2023). Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy. in Materials
MDPI., 16(13), 4781.
https://doi.org/10.3390/ma16134781

Dojčinović M, Prokić Cvetković R, Sedmak A, Popović O, Cvetković I, Radu D. Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy. in Materials. 2023;16(13):4781.
doi:10.3390/ma16134781 .

Dojčinović, Marina, Prokić Cvetković, Radica, Sedmak, Aleksandar, Popović, Olivera, Cvetković, Ivana, Radu, Dorin, "Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy" in Materials, 16, no. 13 (2023):4781,
https://doi.org/10.3390/ma16134781 . .

TY  - CONF
AU  - Dojčinović, Marina
AU  - Prokić Cvetković, Radica
AU  - Sedmak, Aleksandar
AU  - Popović, Olivera
AU  - Cvetković, Ivana
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7008
AB  - Cavitation resistance of welded joints of the three-component aluminum alloy AlMg4.5Mn was examined in this paper. Tests were performed on samples of welded joints as well as on samples of the base material. Welding was performed by TIG and MIG procedures in a protective atmosphere of pure argon. After the welding, metallographic tests were performed. The ultrasonic cavitation test method with a stationary sample was used to test the resistance to cavitation according standard ASTM G32 [1]. During the test, the change in mass of the samples was monitored in order to determine the cavitation rate. The least squares method was applied, where the slope of the straight line determines the cavitation rate (Fig.1). The base material of the AlMg4.5Mn alloy has the highest resistance to the effect of cavitation (the lowest total mass loss and the lowest cavitation rate). The welded joint obtained by the MIG process has a higher resistance to the effect of cavitation compared to the sample obtained by the TIG process. This behavior is a consequence of the smaller porosity and finer microstructure of the sample obtained by the MIG process (Fig. 1). The morphology of damage to the surface of samples exposed to the effect of cavitation during testing was monitored using scanning microscopy. It was shown that ductile fracture mechanism was identified for all studied samples together with the presence of small fatigue like craters.
PB  - Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“
C3  - Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia
T1  - Cavitation resistance of welded joints of AlMg4.5Mn alloy
SP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7008
ER  - 

@conference{
author = "Dojčinović, Marina and Prokić Cvetković, Radica and Sedmak, Aleksandar and Popović, Olivera and Cvetković, Ivana",
year = "2023",
abstract = "Cavitation resistance of welded joints of the three-component aluminum alloy AlMg4.5Mn was examined in this paper. Tests were performed on samples of welded joints as well as on samples of the base material. Welding was performed by TIG and MIG procedures in a protective atmosphere of pure argon. After the welding, metallographic tests were performed. The ultrasonic cavitation test method with a stationary sample was used to test the resistance to cavitation according standard ASTM G32 [1]. During the test, the change in mass of the samples was monitored in order to determine the cavitation rate. The least squares method was applied, where the slope of the straight line determines the cavitation rate (Fig.1). The base material of the AlMg4.5Mn alloy has the highest resistance to the effect of cavitation (the lowest total mass loss and the lowest cavitation rate). The welded joint obtained by the MIG process has a higher resistance to the effect of cavitation compared to the sample obtained by the TIG process. This behavior is a consequence of the smaller porosity and finer microstructure of the sample obtained by the MIG process (Fig. 1). The morphology of damage to the surface of samples exposed to the effect of cavitation during testing was monitored using scanning microscopy. It was shown that ductile fracture mechanism was identified for all studied samples together with the presence of small fatigue like craters.",
publisher = "Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“",
journal = "Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia",
title = "Cavitation resistance of welded joints of AlMg4.5Mn alloy",
pages = "29",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7008"
}

Dojčinović, M., Prokić Cvetković, R., Sedmak, A., Popović, O.,& Cvetković, I.. (2023). Cavitation resistance of welded joints of AlMg4.5Mn alloy. in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia
Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“., 29.
https://hdl.handle.net/21.15107/rcub_technorep_7008

Dojčinović M, Prokić Cvetković R, Sedmak A, Popović O, Cvetković I. Cavitation resistance of welded joints of AlMg4.5Mn alloy. in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia. 2023;:29.
https://hdl.handle.net/21.15107/rcub_technorep_7008 .

Dojčinović, Marina, Prokić Cvetković, Radica, Sedmak, Aleksandar, Popović, Olivera, Cvetković, Ivana, "Cavitation resistance of welded joints of AlMg4.5Mn alloy" in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia (2023):29,
https://hdl.handle.net/21.15107/rcub_technorep_7008 .

Prokić-Cvetković, R., Dojčinović, M., Pavlović, M., Andrić, L., Petrov, M.,& Radulović, D.. (2020). Sinteza i karakterizacija sinterovanog bazalta sa poboljšanom otpornošću na dejstvo kavitacije. .
https://hdl.handle.net/21.15107/rcub_technorep_7031

Prokić-Cvetković R, Dojčinović M, Pavlović M, Andrić L, Petrov M, Radulović D. Sinteza i karakterizacija sinterovanog bazalta sa poboljšanom otpornošću na dejstvo kavitacije. 2020;.
https://hdl.handle.net/21.15107/rcub_technorep_7031 .

Prokić-Cvetković, Radica, Dojčinović, Marina, Pavlović, Marko, Andrić, Ljubiša, Petrov, Milan, Radulović, Dragan, "Sinteza i karakterizacija sinterovanog bazalta sa poboljšanom otpornošću na dejstvo kavitacije" (2020),
https://hdl.handle.net/21.15107/rcub_technorep_7031 .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Prokić-Cvetković, Radica
AU  - Andrić, Ljubiša
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4207
AB  - The paper presents the results of research on cavitation resistance of the composite based on unsaturated polyester resin and basalt powder, as reinforcement. Basalt powder was obtained by grinding and micronising basaltic rocks from the Vrelo-Kopaonik deposit. Different amounts of basalt powder as reinforcement were applied (g): 0.15; 0.30; 045; 0,50. The mechanical properties (tensile strength, bending strength, hardness) and cavitation resistance properties were determined for the resulting composite. An ultrasonic vibration method (with stationary specimen) was applied according to ASTM G32 standard. Studies have shown that the mechanical properties and cavitation resistance of the composites increase with the addition of basalt powder as reinforcement.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Structural Integrity and Life
T1  - Cavitation resistance of composite polyester resin/basalt powder
EP  - 22
IS  - 1
SP  - 19
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4207
ER  - 

@article{
author = "Pavlović, Marko and Dojčinović, Marina and Prokić-Cvetković, Radica and Andrić, Ljubiša",
year = "2019",
abstract = "The paper presents the results of research on cavitation resistance of the composite based on unsaturated polyester resin and basalt powder, as reinforcement. Basalt powder was obtained by grinding and micronising basaltic rocks from the Vrelo-Kopaonik deposit. Different amounts of basalt powder as reinforcement were applied (g): 0.15; 0.30; 045; 0,50. The mechanical properties (tensile strength, bending strength, hardness) and cavitation resistance properties were determined for the resulting composite. An ultrasonic vibration method (with stationary specimen) was applied according to ASTM G32 standard. Studies have shown that the mechanical properties and cavitation resistance of the composites increase with the addition of basalt powder as reinforcement.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Structural Integrity and Life",
title = "Cavitation resistance of composite polyester resin/basalt powder",
pages = "22-19",
number = "1",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4207"
}

Pavlović, M., Dojčinović, M., Prokić-Cvetković, R.,& Andrić, L.. (2019). Cavitation resistance of composite polyester resin/basalt powder. in Structural Integrity and Life
Society for Structural Integrity and Life, Institute for Material Testing., 19(1), 19-22.
https://hdl.handle.net/21.15107/rcub_technorep_4207

Pavlović M, Dojčinović M, Prokić-Cvetković R, Andrić L. Cavitation resistance of composite polyester resin/basalt powder. in Structural Integrity and Life. 2019;19(1):19-22.
https://hdl.handle.net/21.15107/rcub_technorep_4207 .

Pavlović, Marko, Dojčinović, Marina, Prokić-Cvetković, Radica, Andrić, Ljubiša, "Cavitation resistance of composite polyester resin/basalt powder" in Structural Integrity and Life, 19, no. 1 (2019):19-22,
https://hdl.handle.net/21.15107/rcub_technorep_4207 .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Prokić-Cvetković, Radica
AU  - Andrić, Ljubiša
AU  - Ceganjac, Zoran
AU  - Trumbulović, Ljiljana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4219
AB  - This paper examines the possibility of using basalt-based glass ceramics for construction of structural parts of equipment in metallurgy and mining. An ultrasonic vibration method with a stationary sample pursuant to the ASTM G32 standard was used to evaluate the possibility of the glass ceramic samples application in such operating conditions. As the starting material for synthesis of samples, olivine-pyroxene basalt from the locality Vrelo-Kopaonik Mountain (Serbia) was used. In order to obtain pre-determined structure and properties of basalt-based glass ceramics, raw material preparation methods through the sample crushing, grinding, and mechanical activation processes have been examined together with sample synthesis by means of melting, casting, and thermal treatment applied for the samples concerned. The mass loss of samples in function of the cavitation time was monitored. Sample surface degradation level was quantified using the image analysis. During the test, changes in sample morphology were monitored by means of the scanning electronic microscopy method. The results showed that basalt-based glass ceramics are highly resistant to cavitation wear and can be used in similar exploitation conditions as a substitute for other metal materials.
PB  - MDPI, Basel
T2  - Materials
T1  - Cavitation Wear of Basalt-Based Glass Ceramic
IS  - 9
VL  - 12
DO  - 10.3390/ma12091552
ER  - 

@article{
author = "Pavlović, Marko and Dojčinović, Marina and Prokić-Cvetković, Radica and Andrić, Ljubiša and Ceganjac, Zoran and Trumbulović, Ljiljana",
year = "2019",
abstract = "This paper examines the possibility of using basalt-based glass ceramics for construction of structural parts of equipment in metallurgy and mining. An ultrasonic vibration method with a stationary sample pursuant to the ASTM G32 standard was used to evaluate the possibility of the glass ceramic samples application in such operating conditions. As the starting material for synthesis of samples, olivine-pyroxene basalt from the locality Vrelo-Kopaonik Mountain (Serbia) was used. In order to obtain pre-determined structure and properties of basalt-based glass ceramics, raw material preparation methods through the sample crushing, grinding, and mechanical activation processes have been examined together with sample synthesis by means of melting, casting, and thermal treatment applied for the samples concerned. The mass loss of samples in function of the cavitation time was monitored. Sample surface degradation level was quantified using the image analysis. During the test, changes in sample morphology were monitored by means of the scanning electronic microscopy method. The results showed that basalt-based glass ceramics are highly resistant to cavitation wear and can be used in similar exploitation conditions as a substitute for other metal materials.",
publisher = "MDPI, Basel",
journal = "Materials",
title = "Cavitation Wear of Basalt-Based Glass Ceramic",
number = "9",
volume = "12",
doi = "10.3390/ma12091552"
}

Pavlović, M., Dojčinović, M., Prokić-Cvetković, R., Andrić, L., Ceganjac, Z.,& Trumbulović, L.. (2019). Cavitation Wear of Basalt-Based Glass Ceramic. in Materials
MDPI, Basel., 12(9).
https://doi.org/10.3390/ma12091552

Pavlović M, Dojčinović M, Prokić-Cvetković R, Andrić L, Ceganjac Z, Trumbulović L. Cavitation Wear of Basalt-Based Glass Ceramic. in Materials. 2019;12(9).
doi:10.3390/ma12091552 .

Pavlović, Marko, Dojčinović, Marina, Prokić-Cvetković, Radica, Andrić, Ljubiša, Ceganjac, Zoran, Trumbulović, Ljiljana, "Cavitation Wear of Basalt-Based Glass Ceramic" in Materials, 12, no. 9 (2019),
https://doi.org/10.3390/ma12091552 . .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Prokić-Cvetković, Radica
AU  - Andrić, Ljubiša
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4274
AB  - The paper examines the cavitation resistance of the cast basalt samples. Samples were obtained by melting, casting and thermal treatment of crushed basalt rocks from the Vrelo Kopaonik deposit. The experiment was conducted using an ultrasonic vibration method with a stationary sample according to the ASTM G-32 standard. To estimation the cavitation resistance, a change in the mass of the samples in the function of the cavitation time has been observed. The formation and development of damage under the effect of cavitation was monitored by an electron microscope, and the level of degradation of the sample surface was quantified using the image analysis. The results showed a high degree of cavitation resistance of cast basalt samples, with a cavitation rate of 0.0294 mg/min. This indicates the possibility of their application for the production of particular structural parts of equipment for use in metallurgy, as a substitute for metallic materials.
AB  - U radu je ispitivana otpornost na dejstvo kavitacije uzoraka livenog bazalta. Uzorci su dobijeni topljenjem, livenjem i termičkim tretmanom izdrobljenih bazaltnih stena iz ležišta Vrelo Kopaonik. Eksperiment je vođen primenom ultrazvučne vibracione metode sa stacionarnim uzorkom prema standardu ASTM G-32. Za procenu otpornosti na dejstvo kavitacije praćena je promena mase uzoraka u funkciji vremena delovanja kavitacije. Nastajanje i razvoj oštećenja pod dejstvom kavitacije praćeni su skening elektronskim mikroskopom, a nivo degradacije površine uzoraka kvantifikovan je primenom analize slike. Rezultati su pokazali visok stepen otpornosti na dejstvo kavitacije uzoraka livenog bazalta, sa kavitacionom brzinom 0,0294 mg/min. To ukazuje na mogućnost njihove primene za izradu izvesnih konstrukcionih delova opreme za primenu u metalurgiji, kao zamena za metalne materijale.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Formation and development of damage of basalt under the effect of cavitation
T1  - Nastajanje i razvoj oštećenja bazalta pod dejstvom kavitacije
EP  - 189
IS  - 2
SP  - 182
VL  - 60
DO  - 10.5937/zasmat1902182P
ER  - 

@article{
author = "Pavlović, Marko and Dojčinović, Marina and Prokić-Cvetković, Radica and Andrić, Ljubiša",
year = "2019",
abstract = "The paper examines the cavitation resistance of the cast basalt samples. Samples were obtained by melting, casting and thermal treatment of crushed basalt rocks from the Vrelo Kopaonik deposit. The experiment was conducted using an ultrasonic vibration method with a stationary sample according to the ASTM G-32 standard. To estimation the cavitation resistance, a change in the mass of the samples in the function of the cavitation time has been observed. The formation and development of damage under the effect of cavitation was monitored by an electron microscope, and the level of degradation of the sample surface was quantified using the image analysis. The results showed a high degree of cavitation resistance of cast basalt samples, with a cavitation rate of 0.0294 mg/min. This indicates the possibility of their application for the production of particular structural parts of equipment for use in metallurgy, as a substitute for metallic materials., U radu je ispitivana otpornost na dejstvo kavitacije uzoraka livenog bazalta. Uzorci su dobijeni topljenjem, livenjem i termičkim tretmanom izdrobljenih bazaltnih stena iz ležišta Vrelo Kopaonik. Eksperiment je vođen primenom ultrazvučne vibracione metode sa stacionarnim uzorkom prema standardu ASTM G-32. Za procenu otpornosti na dejstvo kavitacije praćena je promena mase uzoraka u funkciji vremena delovanja kavitacije. Nastajanje i razvoj oštećenja pod dejstvom kavitacije praćeni su skening elektronskim mikroskopom, a nivo degradacije površine uzoraka kvantifikovan je primenom analize slike. Rezultati su pokazali visok stepen otpornosti na dejstvo kavitacije uzoraka livenog bazalta, sa kavitacionom brzinom 0,0294 mg/min. To ukazuje na mogućnost njihove primene za izradu izvesnih konstrukcionih delova opreme za primenu u metalurgiji, kao zamena za metalne materijale.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Formation and development of damage of basalt under the effect of cavitation, Nastajanje i razvoj oštećenja bazalta pod dejstvom kavitacije",
pages = "189-182",
number = "2",
volume = "60",
doi = "10.5937/zasmat1902182P"
}

Pavlović, M., Dojčinović, M., Prokić-Cvetković, R.,& Andrić, L.. (2019). Formation and development of damage of basalt under the effect of cavitation. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 60(2), 182-189.
https://doi.org/10.5937/zasmat1902182P

Pavlović M, Dojčinović M, Prokić-Cvetković R, Andrić L. Formation and development of damage of basalt under the effect of cavitation. in Zaštita materijala. 2019;60(2):182-189.
doi:10.5937/zasmat1902182P .

Pavlović, Marko, Dojčinović, Marina, Prokić-Cvetković, Radica, Andrić, Ljubiša, "Formation and development of damage of basalt under the effect of cavitation" in Zaštita materijala, 60, no. 2 (2019):182-189,
https://doi.org/10.5937/zasmat1902182P . .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Prokić-Cvetković, Radica
AU  - Andrić, Ljubiša
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4304
AB  - The paper analyzes the morphology of cavitation damage of raw and sintered basalt samples. The experiment was conducted using the ultrasonic vibratory cavitation test method according to the ASTM G-32 standard. During the determination of the resistance to the effect of cavitation, a change in the mass of samples was observed in the function of the cavitation time of operation. The morphology of damage caused by the effect of cavitation was followed by scanning with an electron microscope, and the level of degradation of the surface of the samples was quantified using the image analysis. The results showed a significantly higher degree of resistance of sintered basalt, with a cavitation rate of 0.019 mg/min relative to raw basalt, with a cavitation rate of 0.738 mg/min. After 120 minutes of exposure to the cavitation effect, a smaller number of small pits on the surface of sintered basalt were observed, while a higher level of damage to the surface with the appearance of numerous pits was found in raw basalt, which can be connected in some places to larger and deeper pits in some places. The obtained results indicate the possibility of using sintered basalt for the production of parts that will be exposed to the effects of high cavitation loads.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Mechanisms of Cavitation Erosion of Raw and Sintered Basalt
EP  - 419
IS  - 4
SP  - 409
VL  - 51
DO  - 10.2298/SOS1904409P
ER  - 

@article{
author = "Pavlović, Marko and Dojčinović, Marina and Prokić-Cvetković, Radica and Andrić, Ljubiša",
year = "2019",
abstract = "The paper analyzes the morphology of cavitation damage of raw and sintered basalt samples. The experiment was conducted using the ultrasonic vibratory cavitation test method according to the ASTM G-32 standard. During the determination of the resistance to the effect of cavitation, a change in the mass of samples was observed in the function of the cavitation time of operation. The morphology of damage caused by the effect of cavitation was followed by scanning with an electron microscope, and the level of degradation of the surface of the samples was quantified using the image analysis. The results showed a significantly higher degree of resistance of sintered basalt, with a cavitation rate of 0.019 mg/min relative to raw basalt, with a cavitation rate of 0.738 mg/min. After 120 minutes of exposure to the cavitation effect, a smaller number of small pits on the surface of sintered basalt were observed, while a higher level of damage to the surface with the appearance of numerous pits was found in raw basalt, which can be connected in some places to larger and deeper pits in some places. The obtained results indicate the possibility of using sintered basalt for the production of parts that will be exposed to the effects of high cavitation loads.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Mechanisms of Cavitation Erosion of Raw and Sintered Basalt",
pages = "419-409",
number = "4",
volume = "51",
doi = "10.2298/SOS1904409P"
}

Pavlović, M., Dojčinović, M., Prokić-Cvetković, R.,& Andrić, L.. (2019). The Mechanisms of Cavitation Erosion of Raw and Sintered Basalt. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(4), 409-419.
https://doi.org/10.2298/SOS1904409P

Pavlović M, Dojčinović M, Prokić-Cvetković R, Andrić L. The Mechanisms of Cavitation Erosion of Raw and Sintered Basalt. in Science of Sintering. 2019;51(4):409-419.
doi:10.2298/SOS1904409P .

Pavlović, Marko, Dojčinović, Marina, Prokić-Cvetković, Radica, Andrić, Ljubiša, "The Mechanisms of Cavitation Erosion of Raw and Sintered Basalt" in Science of Sintering, 51, no. 4 (2019):409-419,
https://doi.org/10.2298/SOS1904409P . .

TY  - JOUR
AU  - Ristić, M.
AU  - Vasović, I.
AU  - Alil, Ana
AU  - Obradović, J.
AU  - Prokić-Cvetković, Radica
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3792
AB  - The aim of this paper was to determine the causes of screws failures in compressor valves, obtained from petroleum industry. The analysed screws were in exploitation and deposition coated. Before the fracture analysis, control calculation of screws is done in order to determine, if the screws are properly dimensioned. After visual and radiographic examination, their chemical composition and structure were analysed. Detail fractography was performed on fractured surfaces to try to obtain an impression about screws failure mechanism. Qualitative analysis of deposit was employed in order to confirm if there was any possible influence of surroundings during their failure in terms of corrosion-assisted cracking. The macrofractography of originally broken surfaces shows a rough and complex topography of fracture surfaces indicating to a possibility that screws failure has been a result of complex loading conditions. Presence of sulfur containing particles on the fracture surfaces of broken screws and in deposit reveals a possibility that failure was environmentally-assisted.
T2  - Journal of the Balkan Tribological Association
T1  - Failure analysis of carbon steel screws under the service in the presence of corrosion environment
EP  - 303
IS  - 2
SP  - 291
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3792
ER  - 

@article{
author = "Ristić, M. and Vasović, I. and Alil, Ana and Obradović, J. and Prokić-Cvetković, Radica",
year = "2018",
abstract = "The aim of this paper was to determine the causes of screws failures in compressor valves, obtained from petroleum industry. The analysed screws were in exploitation and deposition coated. Before the fracture analysis, control calculation of screws is done in order to determine, if the screws are properly dimensioned. After visual and radiographic examination, their chemical composition and structure were analysed. Detail fractography was performed on fractured surfaces to try to obtain an impression about screws failure mechanism. Qualitative analysis of deposit was employed in order to confirm if there was any possible influence of surroundings during their failure in terms of corrosion-assisted cracking. The macrofractography of originally broken surfaces shows a rough and complex topography of fracture surfaces indicating to a possibility that screws failure has been a result of complex loading conditions. Presence of sulfur containing particles on the fracture surfaces of broken screws and in deposit reveals a possibility that failure was environmentally-assisted.",
journal = "Journal of the Balkan Tribological Association",
title = "Failure analysis of carbon steel screws under the service in the presence of corrosion environment",
pages = "303-291",
number = "2",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3792"
}

Ristić, M., Vasović, I., Alil, A., Obradović, J.,& Prokić-Cvetković, R.. (2018). Failure analysis of carbon steel screws under the service in the presence of corrosion environment. in Journal of the Balkan Tribological Association, 24(2), 291-303.
https://hdl.handle.net/21.15107/rcub_technorep_3792

Ristić M, Vasović I, Alil A, Obradović J, Prokić-Cvetković R. Failure analysis of carbon steel screws under the service in the presence of corrosion environment. in Journal of the Balkan Tribological Association. 2018;24(2):291-303.
https://hdl.handle.net/21.15107/rcub_technorep_3792 .

Ristić, M., Vasović, I., Alil, Ana, Obradović, J., Prokić-Cvetković, Radica, "Failure analysis of carbon steel screws under the service in the presence of corrosion environment" in Journal of the Balkan Tribological Association, 24, no. 2 (2018):291-303,
https://hdl.handle.net/21.15107/rcub_technorep_3792 .

TY  - JOUR
AU  - Burzić, Meri
AU  - Prokić-Cvetković, Radica
AU  - Manjgo, Mersida
AU  - Milović, Ljubica
AU  - Arsić, Miodrag
AU  - Popović, Olivera
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2052
AB  - The effect of vibration on the variation of residual stresses in butt-welded steel plates and on the impact energy in characteristic zones of a welded joint is analysed in this paper. An important segment occurring as a result of welding is the phenomenon of residual stresses in the welded joint zone. Residual stress measurements are conducted both on butt-welded plates that were not vibrated during welding and on plates simultaneously welded and vibrated. It is concluded that the vibration process noticeably decreases the level of stresses in the zone of the butt weld, i.e. the result is relaxation and plane stress state. Impact energy tests have shown that vibration favourably affects the total impact energy by increasing it both in specimens notched in the weld metal (WM) and in the heat-affected zone (HAZ). It is also concluded that the correlation between the distribution of crack initiation- and crack propagation energy, as vital components in the assessment of welded joint ductility, is improved.
AB  - Istraživanje uticaja vibracija na promenu zaostalih napona kod sučeono zavarenih čeličnih ploča i promena energije udara u karakterističnim zonama zavarenog spoja analizirana je u ovom radu. Bitan segment, koji se javlja kao posledica zavarivanja, je pojava zaostalih napona u zoni zavarenog spoja. Merenje zaostalih napona je rađeno na sučeono zavarenim pločama koje nisu vibrirane u toku zavarivanja i kod ploča koje su istovremeno zavarivane i vibrirane. Uočeno je da proces vibracija znatno smanjuje nivo zaostalih napona u zoni sučeono zavarenog spoja, odnosno, dolazi do relaksacije i uravnoteženja stanja napona. Ispitivanja energije udara su pokazala da vibracije pozitivno utiču na povećanje ukupne energije udara i kod epruveta sa zarezom u metalu šava i u zoni uticaja toplote. Uočen je i bolji odnos raspodele energije stvaranja i energije širenja prsline, kao važnih komponenti u oceni plastičnosti zavarenog spoja.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Integritet i vek konstrukcija
T1  - Effect of vibration on the variation of residual stresses and impact energy in butt-welded joints
T1  - Uticaj vibracija na promenu zaostalih napona i energije udara kod sučeono zavarenih spojeva
EP  - 220
IS  - 3
SP  - 215
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2052
ER  - 

@article{
author = "Burzić, Meri and Prokić-Cvetković, Radica and Manjgo, Mersida and Milović, Ljubica and Arsić, Miodrag and Popović, Olivera",
year = "2012",
abstract = "The effect of vibration on the variation of residual stresses in butt-welded steel plates and on the impact energy in characteristic zones of a welded joint is analysed in this paper. An important segment occurring as a result of welding is the phenomenon of residual stresses in the welded joint zone. Residual stress measurements are conducted both on butt-welded plates that were not vibrated during welding and on plates simultaneously welded and vibrated. It is concluded that the vibration process noticeably decreases the level of stresses in the zone of the butt weld, i.e. the result is relaxation and plane stress state. Impact energy tests have shown that vibration favourably affects the total impact energy by increasing it both in specimens notched in the weld metal (WM) and in the heat-affected zone (HAZ). It is also concluded that the correlation between the distribution of crack initiation- and crack propagation energy, as vital components in the assessment of welded joint ductility, is improved., Istraživanje uticaja vibracija na promenu zaostalih napona kod sučeono zavarenih čeličnih ploča i promena energije udara u karakterističnim zonama zavarenog spoja analizirana je u ovom radu. Bitan segment, koji se javlja kao posledica zavarivanja, je pojava zaostalih napona u zoni zavarenog spoja. Merenje zaostalih napona je rađeno na sučeono zavarenim pločama koje nisu vibrirane u toku zavarivanja i kod ploča koje su istovremeno zavarivane i vibrirane. Uočeno je da proces vibracija znatno smanjuje nivo zaostalih napona u zoni sučeono zavarenog spoja, odnosno, dolazi do relaksacije i uravnoteženja stanja napona. Ispitivanja energije udara su pokazala da vibracije pozitivno utiču na povećanje ukupne energije udara i kod epruveta sa zarezom u metalu šava i u zoni uticaja toplote. Uočen je i bolji odnos raspodele energije stvaranja i energije širenja prsline, kao važnih komponenti u oceni plastičnosti zavarenog spoja.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Integritet i vek konstrukcija",
title = "Effect of vibration on the variation of residual stresses and impact energy in butt-welded joints, Uticaj vibracija na promenu zaostalih napona i energije udara kod sučeono zavarenih spojeva",
pages = "220-215",
number = "3",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2052"
}

Burzić, M., Prokić-Cvetković, R., Manjgo, M., Milović, L., Arsić, M.,& Popović, O.. (2012). Effect of vibration on the variation of residual stresses and impact energy in butt-welded joints. in Integritet i vek konstrukcija
Society for Structural Integrity and Life, Institute for Material Testing., 12(3), 215-220.
https://hdl.handle.net/21.15107/rcub_technorep_2052

Burzić M, Prokić-Cvetković R, Manjgo M, Milović L, Arsić M, Popović O. Effect of vibration on the variation of residual stresses and impact energy in butt-welded joints. in Integritet i vek konstrukcija. 2012;12(3):215-220.
https://hdl.handle.net/21.15107/rcub_technorep_2052 .

Burzić, Meri, Prokić-Cvetković, Radica, Manjgo, Mersida, Milović, Ljubica, Arsić, Miodrag, Popović, Olivera, "Effect of vibration on the variation of residual stresses and impact energy in butt-welded joints" in Integritet i vek konstrukcija, 12, no. 3 (2012):215-220,
https://hdl.handle.net/21.15107/rcub_technorep_2052 .

TY  - JOUR
AU  - Popović, Olivera
AU  - Prokić-Cvetković, Radica
AU  - Sedmak, Aleksandar
AU  - Grabulov, Vencislav
AU  - Burzić, Zijah
AU  - Rakin, Marko
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5584
AB  - In this paper microstructural and mechanical properties of high-carbon steel surface welded layer obtained with self-shielded flux cored wire are presented in standard rails and crossings. The testing results of tensile characteristics, hardness, toughness via instrumented Charpy pendulum, microstructural analysis and fatigue crack growth resistance of all characteristical zones are analyzed in detail, especially from the point of view of interaction between microstructure and properties. The obtained results indicate superior properties of repaired welded layers, which is due to their similarity to the new generation of bainitic steel, i.e., due to the change of microstructure from original pearlitic structure to final bainitic structure. Finally, fatigue crack growth parameters have shown that deposite layer has higher resistance than the crack growth, improving overall reliability of rails and crossings.
PB  - Assoc Mechanical Engineers Technicians Slovenia, Ljubljana
T2  - Strojniski Vestnik-Journal of Mechanical Engineering
T1  - Characterisation of High-Carbon Steel Surface Welded Layer
EP  - 300
IS  - 5
SP  - 295
VL  - 56
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1103
ER  - 

@article{
author = "Popović, Olivera and Prokić-Cvetković, Radica and Sedmak, Aleksandar and Grabulov, Vencislav and Burzić, Zijah and Rakin, Marko",
year = "2010",
abstract = "In this paper microstructural and mechanical properties of high-carbon steel surface welded layer obtained with self-shielded flux cored wire are presented in standard rails and crossings. The testing results of tensile characteristics, hardness, toughness via instrumented Charpy pendulum, microstructural analysis and fatigue crack growth resistance of all characteristical zones are analyzed in detail, especially from the point of view of interaction between microstructure and properties. The obtained results indicate superior properties of repaired welded layers, which is due to their similarity to the new generation of bainitic steel, i.e., due to the change of microstructure from original pearlitic structure to final bainitic structure. Finally, fatigue crack growth parameters have shown that deposite layer has higher resistance than the crack growth, improving overall reliability of rails and crossings.",
publisher = "Assoc Mechanical Engineers Technicians Slovenia, Ljubljana",
journal = "Strojniski Vestnik-Journal of Mechanical Engineering",
title = "Characterisation of High-Carbon Steel Surface Welded Layer",
pages = "300-295",
number = "5",
volume = "56",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1103"
}

Popović, O., Prokić-Cvetković, R., Sedmak, A., Grabulov, V., Burzić, Z.,& Rakin, M.. (2010). Characterisation of High-Carbon Steel Surface Welded Layer. in Strojniski Vestnik-Journal of Mechanical Engineering
Assoc Mechanical Engineers Technicians Slovenia, Ljubljana., 56(5), 295-300.
https://hdl.handle.net/21.15107/rcub_machinery_1103

Popović O, Prokić-Cvetković R, Sedmak A, Grabulov V, Burzić Z, Rakin M. Characterisation of High-Carbon Steel Surface Welded Layer. in Strojniski Vestnik-Journal of Mechanical Engineering. 2010;56(5):295-300.
https://hdl.handle.net/21.15107/rcub_machinery_1103 .

Popović, Olivera, Prokić-Cvetković, Radica, Sedmak, Aleksandar, Grabulov, Vencislav, Burzić, Zijah, Rakin, Marko, "Characterisation of High-Carbon Steel Surface Welded Layer" in Strojniski Vestnik-Journal of Mechanical Engineering, 56, no. 5 (2010):295-300,
https://hdl.handle.net/21.15107/rcub_machinery_1103 .

TY  - JOUR
AU  - Tadić, Srđan
AU  - Prokić-Cvetković, Radica
AU  - Balać, Igor
AU  - Jančić-Heinemann, Radmila
AU  - Bojić, Katarina
AU  - Sedmak, Aleksandar
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1533
AB  - Ti3Al-11Nb-1V (x/%) was made in a vacuum arc furnace. Hot-rolling was conducted at 1050 degrees C in a two-phase field of the alloy. Strain-rate jump tests were performed at T = 800-1100 degrees C and strain rates of 10(-6) to 10(-3) s(-1). Creep stress exponent (n) and activation energy for deformation (Q) were used to identify deformation mechanisms. Two sequential mechanisms are revealed: (i) viscous glide, typical of solid solution alloys and, (ii) power law breakdown at lower temperatures. Activation energy for deformation was found to be strongly stress-dependant.
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Deformation mechanisms in ti3al-nb alloy at elevated temperatures
EP  - 361
IS  - 6
SP  - 357
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1533
ER  - 

@article{
author = "Tadić, Srđan and Prokić-Cvetković, Radica and Balać, Igor and Jančić-Heinemann, Radmila and Bojić, Katarina and Sedmak, Aleksandar",
year = "2010",
abstract = "Ti3Al-11Nb-1V (x/%) was made in a vacuum arc furnace. Hot-rolling was conducted at 1050 degrees C in a two-phase field of the alloy. Strain-rate jump tests were performed at T = 800-1100 degrees C and strain rates of 10(-6) to 10(-3) s(-1). Creep stress exponent (n) and activation energy for deformation (Q) were used to identify deformation mechanisms. Two sequential mechanisms are revealed: (i) viscous glide, typical of solid solution alloys and, (ii) power law breakdown at lower temperatures. Activation energy for deformation was found to be strongly stress-dependant.",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Deformation mechanisms in ti3al-nb alloy at elevated temperatures",
pages = "361-357",
number = "6",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1533"
}

Tadić, S., Prokić-Cvetković, R., Balać, I., Jančić-Heinemann, R., Bojić, K.,& Sedmak, A.. (2010). Deformation mechanisms in ti3al-nb alloy at elevated temperatures. in Materiali in Tehnologije
Institute of Metals and Technology., 44(6), 357-361.
https://hdl.handle.net/21.15107/rcub_technorep_1533

Tadić S, Prokić-Cvetković R, Balać I, Jančić-Heinemann R, Bojić K, Sedmak A. Deformation mechanisms in ti3al-nb alloy at elevated temperatures. in Materiali in Tehnologije. 2010;44(6):357-361.
https://hdl.handle.net/21.15107/rcub_technorep_1533 .

Tadić, Srđan, Prokić-Cvetković, Radica, Balać, Igor, Jančić-Heinemann, Radmila, Bojić, Katarina, Sedmak, Aleksandar, "Deformation mechanisms in ti3al-nb alloy at elevated temperatures" in Materiali in Tehnologije, 44, no. 6 (2010):357-361,
https://hdl.handle.net/21.15107/rcub_technorep_1533 .