TY  - JOUR
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Blačić, Ivo
AU  - Vuherer, Tomaz
AU  - Bulatović, Srđan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4086
AB  - Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ
EP  - 1106
SP  - 1094
VL  - 104
DO  - 10.1016/j.engfailanal.2019.06.017
ER  - 

@article{
author = "Aleksić, Vujadin and Milović, Ljubica and Blačić, Ivo and Vuherer, Tomaz and Bulatović, Srđan",
year = "2019",
abstract = "Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ",
pages = "1106-1094",
volume = "104",
doi = "10.1016/j.engfailanal.2019.06.017"
}

Aleksić, V., Milović, L., Blačić, I., Vuherer, T.,& Bulatović, S.. (2019). Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 104, 1094-1106.
https://doi.org/10.1016/j.engfailanal.2019.06.017

Aleksić V, Milović L, Blačić I, Vuherer T, Bulatović S. Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis. 2019;104:1094-1106.
doi:10.1016/j.engfailanal.2019.06.017 .

Aleksić, Vujadin, Milović, Ljubica, Blačić, Ivo, Vuherer, Tomaz, Bulatović, Srđan, "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ" in Engineering Failure Analysis, 104 (2019):1094-1106,
https://doi.org/10.1016/j.engfailanal.2019.06.017 . .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Petrovski, Blagoj
AU  - Vuherer, Tomaz
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4142
AB  - This paper presents a method for estimating the residual-strength of welded pressure vessel made of HSLA steel which contains a surface axial crack. In order to analyze the behavior of the structure, a set of specimens were extracted from the welded plates using the same welding procedure as used for welding of the vessel. Before the fatigue precracking, the notches were positioned in parent material, heat-affected zone and weld metal of standard bend specimens. The J-integral resistance curve method for residual strength prediction comprises the following steps: 1. Obtaining of root J(R) resistance curves for the pressure vessel material using convenient specimens; 2. Obtaining root J crack driving force curves for the investigated structure for different crack sizes and different levels of applied stresses by applying the appropriate model of plasticity (Dugdale model); 3. Determination of the instability point as the tangency point between the crack driving force curve and the resistance curve. J-resistance curve of welded joint constituents were determined at -40 degrees C using a single specimen compliance procedure.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature
VL  - 106
DO  - 10.1016/j.engfailanal.2019.104167
ER  - 

@article{
author = "Milović, Ljubica and Petrovski, Blagoj and Vuherer, Tomaz",
year = "2019",
abstract = "This paper presents a method for estimating the residual-strength of welded pressure vessel made of HSLA steel which contains a surface axial crack. In order to analyze the behavior of the structure, a set of specimens were extracted from the welded plates using the same welding procedure as used for welding of the vessel. Before the fatigue precracking, the notches were positioned in parent material, heat-affected zone and weld metal of standard bend specimens. The J-integral resistance curve method for residual strength prediction comprises the following steps: 1. Obtaining of root J(R) resistance curves for the pressure vessel material using convenient specimens; 2. Obtaining root J crack driving force curves for the investigated structure for different crack sizes and different levels of applied stresses by applying the appropriate model of plasticity (Dugdale model); 3. Determination of the instability point as the tangency point between the crack driving force curve and the resistance curve. J-resistance curve of welded joint constituents were determined at -40 degrees C using a single specimen compliance procedure.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature",
volume = "106",
doi = "10.1016/j.engfailanal.2019.104167"
}

Milović, L., Petrovski, B.,& Vuherer, T.. (2019). Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 106.
https://doi.org/10.1016/j.engfailanal.2019.104167

Milović L, Petrovski B, Vuherer T. Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature. in Engineering Failure Analysis. 2019;106.
doi:10.1016/j.engfailanal.2019.104167 .

Milović, Ljubica, Petrovski, Blagoj, Vuherer, Tomaz, "Estimation of residual strength of a crack-containing welded pressure vessel exposed to a subzero operating temperature" in Engineering Failure Analysis, 106 (2019),
https://doi.org/10.1016/j.engfailanal.2019.104167 . .

TY  - JOUR
AU  - Perovic, Miodrag
AU  - Vuherer, Tomaz
AU  - Bajic, Darko
AU  - Geric, Katarina
AU  - Balos, Sebastian
AU  - Rakin, Marko
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6013
AB  - The paper analyses the impact of the tool geometry on the friction stir welding (FSW) method on fracture toughness values of the base metal (BM) and weld metal (WM) of a butt welded joints of a high strength aluminium alloy. Values of fracture toughness were obtained using single-edge notched bend (SENB) specimens with fatigue pre-crack sampled from the BM and TMAZ (thermo-mechanically affected zone). Single specimen method was used according to ASTM E 1820 and parameters of elastic-plastic fracture mechanics were determined (CTOD crack tip opening displacement and the J integral). Although the welding tools had different values of cone angle (α = 2.5° - 10°) and the variable length of the pin (h = 5.1 mm - 5.4 mm) at a constant ratio of the number of tool revolutions and the speed of welding, the largest value of fracture toughness has the retreating side of the weld, then the advancing side of the WM, while the BM has the lowest value. This is the effect of recrystallization process in the retreating side of the WM due to combined rotating-straight forward motion of the tool during which the softened material is repeatedly transformed from one side to the other side around the centre of the tool.
PB  - Serbian Welding Society, Belgrade
T2  - Заваривање и заварене конструкције
T1  - Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint
EP  - 167
IS  - 4
SP  - 159
VL  - 63
DO  - 10.5937/zzk1804159P
ER  - 

@article{
author = "Perovic, Miodrag and Vuherer, Tomaz and Bajic, Darko and Geric, Katarina and Balos, Sebastian and Rakin, Marko",
year = "2018",
abstract = "The paper analyses the impact of the tool geometry on the friction stir welding (FSW) method on fracture toughness values of the base metal (BM) and weld metal (WM) of a butt welded joints of a high strength aluminium alloy. Values of fracture toughness were obtained using single-edge notched bend (SENB) specimens with fatigue pre-crack sampled from the BM and TMAZ (thermo-mechanically affected zone). Single specimen method was used according to ASTM E 1820 and parameters of elastic-plastic fracture mechanics were determined (CTOD crack tip opening displacement and the J integral). Although the welding tools had different values of cone angle (α = 2.5° - 10°) and the variable length of the pin (h = 5.1 mm - 5.4 mm) at a constant ratio of the number of tool revolutions and the speed of welding, the largest value of fracture toughness has the retreating side of the weld, then the advancing side of the WM, while the BM has the lowest value. This is the effect of recrystallization process in the retreating side of the WM due to combined rotating-straight forward motion of the tool during which the softened material is repeatedly transformed from one side to the other side around the centre of the tool.",
publisher = "Serbian Welding Society, Belgrade",
journal = "Заваривање и заварене конструкције",
title = "Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint",
pages = "167-159",
number = "4",
volume = "63",
doi = "10.5937/zzk1804159P"
}

Perovic, M., Vuherer, T., Bajic, D., Geric, K., Balos, S.,& Rakin, M.. (2018). Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint. in Заваривање и заварене конструкције
Serbian Welding Society, Belgrade., 63(4), 159-167.
https://doi.org/10.5937/zzk1804159P

Perovic M, Vuherer T, Bajic D, Geric K, Balos S, Rakin M. Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint. in Заваривање и заварене конструкције. 2018;63(4):159-167.
doi:10.5937/zzk1804159P .

Perovic, Miodrag, Vuherer, Tomaz, Bajic, Darko, Geric, Katarina, Balos, Sebastian, Rakin, Marko, "Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint" in Заваривање и заварене конструкције, 63, no. 4 (2018):159-167,
https://doi.org/10.5937/zzk1804159P . .

TY  - JOUR
AU  - Vuherer, T.
AU  - Zrilić, Milorad
AU  - Milović, Ljubica
AU  - Samardžić, Ivan
AU  - Gliha, V.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2806
AB  - The post weld heat treatment (PWHT) was used to reduce the level of the residual stresses and increase of the crack resistance of the material in the connection part.The article presents the results of the residual stress measurements immediately after welding and after the stress relaxation by the PWHT.
PB  - Croatian Metallurgical Soc, Zagreb
T2  - Metalurgija
T1  - Suitability of heat treatment for crack resistance of material in the connection part of heavy transporter for liquid slag
EP  - 246
IS  - 2
SP  - 243
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2806
ER  - 

@article{
author = "Vuherer, T. and Zrilić, Milorad and Milović, Ljubica and Samardžić, Ivan and Gliha, V.",
year = "2014",
abstract = "The post weld heat treatment (PWHT) was used to reduce the level of the residual stresses and increase of the crack resistance of the material in the connection part.The article presents the results of the residual stress measurements immediately after welding and after the stress relaxation by the PWHT.",
publisher = "Croatian Metallurgical Soc, Zagreb",
journal = "Metalurgija",
title = "Suitability of heat treatment for crack resistance of material in the connection part of heavy transporter for liquid slag",
pages = "246-243",
number = "2",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2806"
}

Vuherer, T., Zrilić, M., Milović, L., Samardžić, I.,& Gliha, V.. (2014). Suitability of heat treatment for crack resistance of material in the connection part of heavy transporter for liquid slag. in Metalurgija
Croatian Metallurgical Soc, Zagreb., 53(2), 243-246.
https://hdl.handle.net/21.15107/rcub_technorep_2806

Vuherer T, Zrilić M, Milović L, Samardžić I, Gliha V. Suitability of heat treatment for crack resistance of material in the connection part of heavy transporter for liquid slag. in Metalurgija. 2014;53(2):243-246.
https://hdl.handle.net/21.15107/rcub_technorep_2806 .

Vuherer, T., Zrilić, Milorad, Milović, Ljubica, Samardžić, Ivan, Gliha, V., "Suitability of heat treatment for crack resistance of material in the connection part of heavy transporter for liquid slag" in Metalurgija, 53, no. 2 (2014):243-246,
https://hdl.handle.net/21.15107/rcub_technorep_2806 .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Vuherer, T.
AU  - Blačić, Ivo
AU  - Vrhovac, Miran
AU  - Stanković, M.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2476
AB  - The subject of this paper is the microstructural and mechanical characterisation of regions of the heat-affected zone (HAZ) in steels containing 9-12% Cr that are used for operation at elevated temperatures. Tests were performed on regions in the HAZ, which was created by physical simulation using a thermal welding simulator. Half of the simulated samples (SSs) were tested at room temperature (RT) and at an operating temperature (OT) of 600 degrees C immediately after simulation/welding, while the rest of the simulated samples were tested at RT and at the OT after heat treatment following the welding, i.e., post-weld heat treatment (PWHT). In addition to the results from mechanical testing, the results from microstructural analysis using light microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are also presented. The manner in which PWHT contributes to the creep resistance of the HAZ in P91 steel is demonstrated.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures
EP  - 667
SP  - 660
VL  - 46
DO  - 10.1016/j.matdes.2012.10.057
ER  - 

@article{
author = "Milović, Ljubica and Vuherer, T. and Blačić, Ivo and Vrhovac, Miran and Stanković, M.",
year = "2013",
abstract = "The subject of this paper is the microstructural and mechanical characterisation of regions of the heat-affected zone (HAZ) in steels containing 9-12% Cr that are used for operation at elevated temperatures. Tests were performed on regions in the HAZ, which was created by physical simulation using a thermal welding simulator. Half of the simulated samples (SSs) were tested at room temperature (RT) and at an operating temperature (OT) of 600 degrees C immediately after simulation/welding, while the rest of the simulated samples were tested at RT and at the OT after heat treatment following the welding, i.e., post-weld heat treatment (PWHT). In addition to the results from mechanical testing, the results from microstructural analysis using light microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are also presented. The manner in which PWHT contributes to the creep resistance of the HAZ in P91 steel is demonstrated.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures",
pages = "667-660",
volume = "46",
doi = "10.1016/j.matdes.2012.10.057"
}

Milović, L., Vuherer, T., Blačić, I., Vrhovac, M.,& Stanković, M.. (2013). Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures. in Materials & Design
Elsevier Sci Ltd, Oxford., 46, 660-667.
https://doi.org/10.1016/j.matdes.2012.10.057

Milović L, Vuherer T, Blačić I, Vrhovac M, Stanković M. Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures. in Materials & Design. 2013;46:660-667.
doi:10.1016/j.matdes.2012.10.057 .

Milović, Ljubica, Vuherer, T., Blačić, Ivo, Vrhovac, Miran, Stanković, M., "Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures" in Materials & Design, 46 (2013):660-667,
https://doi.org/10.1016/j.matdes.2012.10.057 . .

TY  - JOUR
AU  - Vuherer, T.
AU  - Dunder, M.
AU  - Milović, Ljubica
AU  - Zrilić, Milorad
AU  - Samardžić, Ivan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2256
AB  - In the process of testing teal components exposed to elevated temperature, it is hot possible to neglect Cracks. The most significant cracks can be induced by welding, which is applied for joining of Structural components. Pressure equipment in service is also exposed to high pressure and high stresses. Materials for their manufacturing are designed to resist high stress at elevated temperature, and to meet requirements regarding creep resistance. The objective of this study is to investigate microstructure of different regions of the heat affected zone in T/P91 steels by using thermal simulation instead of welding.
PB  - Croatian Metallurgical Society
T2  - Metalurgija
T1  - Microstructural investigation of the heat-affected zone of simulated welded joint of p91 steel
EP  - 320
IS  - 3
SP  - 317
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2256
ER  - 

@article{
author = "Vuherer, T. and Dunder, M. and Milović, Ljubica and Zrilić, Milorad and Samardžić, Ivan",
year = "2013",
abstract = "In the process of testing teal components exposed to elevated temperature, it is hot possible to neglect Cracks. The most significant cracks can be induced by welding, which is applied for joining of Structural components. Pressure equipment in service is also exposed to high pressure and high stresses. Materials for their manufacturing are designed to resist high stress at elevated temperature, and to meet requirements regarding creep resistance. The objective of this study is to investigate microstructure of different regions of the heat affected zone in T/P91 steels by using thermal simulation instead of welding.",
publisher = "Croatian Metallurgical Society",
journal = "Metalurgija",
title = "Microstructural investigation of the heat-affected zone of simulated welded joint of p91 steel",
pages = "320-317",
number = "3",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2256"
}

Vuherer, T., Dunder, M., Milović, L., Zrilić, M.,& Samardžić, I.. (2013). Microstructural investigation of the heat-affected zone of simulated welded joint of p91 steel. in Metalurgija
Croatian Metallurgical Society., 52(3), 317-320.
https://hdl.handle.net/21.15107/rcub_technorep_2256

Vuherer T, Dunder M, Milović L, Zrilić M, Samardžić I. Microstructural investigation of the heat-affected zone of simulated welded joint of p91 steel. in Metalurgija. 2013;52(3):317-320.
https://hdl.handle.net/21.15107/rcub_technorep_2256 .

Vuherer, T., Dunder, M., Milović, Ljubica, Zrilić, Milorad, Samardžić, Ivan, "Microstructural investigation of the heat-affected zone of simulated welded joint of p91 steel" in Metalurgija, 52, no. 3 (2013):317-320,
https://hdl.handle.net/21.15107/rcub_technorep_2256 .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Vuherer, Tomaz
AU  - Radaković, Zoran
AU  - Petrovski, Blagoj
AU  - Janković, Miodrag
AU  - Zrilić, Milorad
AU  - Daničić, Darko
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1840
AB  - The structural integrity and operational safety of welded pressure vessels primarily depends on the behaviour of weldments. In spite of all efforts in material production and improvements in welding techniques, including strict codes, requirements and directives, the crack occurrence in welded structures cannot be completely excluded. This is why fracture mechanics analysis is inevitable in the structural integrity assessment of all welded structures. Examples of practical application of fracture mechanics parameters in cracked pressure vessel structural integrity are considered. This paper shows the determination of parameters of the fatigue crack for constituents of welded joints produced of high strength low alloyed steel Nionikral-70 (yield strength 700 MPa). Results have shown that the position of notch and crack initiation affect the values of the stress intensity range of fatigue threshold DKth and parameters in the Paris' equation.
AB  - Integritet konstrukcije i sigurnost u radu zavarenih posuda pod pritiskom uglavnom zavisi od ponašanja zavarenih spojeva. Pored svih uloženih napora u proizvodnji i poboljšanja postupaka zavarivanja, uključujući i stroge standarde, zahteve i smernice, pojava prslina u zavarenim konstrukcijama se ne može u potpunosti izbeći. Zato je analiza mehanike loma neophodna u proceni integriteta svih zavarenih konstrukcija. Razmotreni su primeri praktične primene parametara mehanike loma u integritetu posuda pod pritiskom sa prslinom. Rad prikazuje određivanje parametara zamorne prsline za konstituente zavarenih spojeva izrađenih od niskolegiranog čelika povišene čvrstoće Nionikral-70 (napona tečenja 700 MPa). Rezultati pokazuju da položaj zareza i inicijacija prsline utiču na vrednosti raspona napona za granicu zamora DKth i na parametre Parisove relacije.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Integritet i vek konstrukcija
T1  - Determination of fatigue crack growth parameters in welded joint of HSLA steel
T1  - Određivanje parametara zamornog rasta prsline kod zavarenih spojeva od HSLA čelika
EP  - 187
IS  - 3
SP  - 183
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1840
ER  - 

@article{
author = "Milović, Ljubica and Vuherer, Tomaz and Radaković, Zoran and Petrovski, Blagoj and Janković, Miodrag and Zrilić, Milorad and Daničić, Darko",
year = "2011",
abstract = "The structural integrity and operational safety of welded pressure vessels primarily depends on the behaviour of weldments. In spite of all efforts in material production and improvements in welding techniques, including strict codes, requirements and directives, the crack occurrence in welded structures cannot be completely excluded. This is why fracture mechanics analysis is inevitable in the structural integrity assessment of all welded structures. Examples of practical application of fracture mechanics parameters in cracked pressure vessel structural integrity are considered. This paper shows the determination of parameters of the fatigue crack for constituents of welded joints produced of high strength low alloyed steel Nionikral-70 (yield strength 700 MPa). Results have shown that the position of notch and crack initiation affect the values of the stress intensity range of fatigue threshold DKth and parameters in the Paris' equation., Integritet konstrukcije i sigurnost u radu zavarenih posuda pod pritiskom uglavnom zavisi od ponašanja zavarenih spojeva. Pored svih uloženih napora u proizvodnji i poboljšanja postupaka zavarivanja, uključujući i stroge standarde, zahteve i smernice, pojava prslina u zavarenim konstrukcijama se ne može u potpunosti izbeći. Zato je analiza mehanike loma neophodna u proceni integriteta svih zavarenih konstrukcija. Razmotreni su primeri praktične primene parametara mehanike loma u integritetu posuda pod pritiskom sa prslinom. Rad prikazuje određivanje parametara zamorne prsline za konstituente zavarenih spojeva izrađenih od niskolegiranog čelika povišene čvrstoće Nionikral-70 (napona tečenja 700 MPa). Rezultati pokazuju da položaj zareza i inicijacija prsline utiču na vrednosti raspona napona za granicu zamora DKth i na parametre Parisove relacije.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Integritet i vek konstrukcija",
title = "Determination of fatigue crack growth parameters in welded joint of HSLA steel, Određivanje parametara zamornog rasta prsline kod zavarenih spojeva od HSLA čelika",
pages = "187-183",
number = "3",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1840"
}

Milović, L., Vuherer, T., Radaković, Z., Petrovski, B., Janković, M., Zrilić, M.,& Daničić, D.. (2011). Determination of fatigue crack growth parameters in welded joint of HSLA steel. in Integritet i vek konstrukcija
Society for Structural Integrity and Life, Institute for Material Testing., 11(3), 183-187.
https://hdl.handle.net/21.15107/rcub_technorep_1840

Milović L, Vuherer T, Radaković Z, Petrovski B, Janković M, Zrilić M, Daničić D. Determination of fatigue crack growth parameters in welded joint of HSLA steel. in Integritet i vek konstrukcija. 2011;11(3):183-187.
https://hdl.handle.net/21.15107/rcub_technorep_1840 .

Milović, Ljubica, Vuherer, Tomaz, Radaković, Zoran, Petrovski, Blagoj, Janković, Miodrag, Zrilić, Milorad, Daničić, Darko, "Determination of fatigue crack growth parameters in welded joint of HSLA steel" in Integritet i vek konstrukcija, 11, no. 3 (2011):183-187,
https://hdl.handle.net/21.15107/rcub_technorep_1840 .

TY  - JOUR
AU  - Vuherer, T.
AU  - Milović, Ljubica
AU  - Gliha, V.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1855
AB  - In this investigation we look at the influence of the local residual stresses caused by Vickers-pyramid indenting on the initiation and early propagation of small cracks from indentations in coarse-grain martensitic steel. The size of these indentations is comparable to the grain size. Specimens with and without a local residual stress field were tested on a rotary bending machine. A focused ion beam and a scanning electron microscope were used to reveal the influence of those stresses on the location of the cracks' initiation and the mechanism of the small-crack propagation. The existing local residual stresses assist in the initiation of two cracks at a level lower than the fatigue limit. The early small-crack propagation is gradually obstructed by the residual stress-field configuration until the cracks become non-propagating cracks. At levels higher than the fatigue limit, both cracks succeed in breaking through the compressive stressed domain and link together. From that moment the crack begins to behave as a long crack, penetrating outside the indentation into the tensile-stressed domains.
PB  - Elsevier Sci Ltd, Oxford
T2  - International Journal of Fatigue
T1  - Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation
EP  - 1513
IS  - 12
SP  - 1505
VL  - 33
DO  - 10.1016/j.ijfatigue.2011.06.008
ER  - 

@article{
author = "Vuherer, T. and Milović, Ljubica and Gliha, V.",
year = "2011",
abstract = "In this investigation we look at the influence of the local residual stresses caused by Vickers-pyramid indenting on the initiation and early propagation of small cracks from indentations in coarse-grain martensitic steel. The size of these indentations is comparable to the grain size. Specimens with and without a local residual stress field were tested on a rotary bending machine. A focused ion beam and a scanning electron microscope were used to reveal the influence of those stresses on the location of the cracks' initiation and the mechanism of the small-crack propagation. The existing local residual stresses assist in the initiation of two cracks at a level lower than the fatigue limit. The early small-crack propagation is gradually obstructed by the residual stress-field configuration until the cracks become non-propagating cracks. At levels higher than the fatigue limit, both cracks succeed in breaking through the compressive stressed domain and link together. From that moment the crack begins to behave as a long crack, penetrating outside the indentation into the tensile-stressed domains.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "International Journal of Fatigue",
title = "Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation",
pages = "1513-1505",
number = "12",
volume = "33",
doi = "10.1016/j.ijfatigue.2011.06.008"
}

Vuherer, T., Milović, L.,& Gliha, V.. (2011). Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation. in International Journal of Fatigue
Elsevier Sci Ltd, Oxford., 33(12), 1505-1513.
https://doi.org/10.1016/j.ijfatigue.2011.06.008

Vuherer T, Milović L, Gliha V. Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation. in International Journal of Fatigue. 2011;33(12):1505-1513.
doi:10.1016/j.ijfatigue.2011.06.008 .

Vuherer, T., Milović, Ljubica, Gliha, V., "Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation" in International Journal of Fatigue, 33, no. 12 (2011):1505-1513,
https://doi.org/10.1016/j.ijfatigue.2011.06.008 . .

TY  - JOUR
AU  - Vuherer, Tomaz
AU  - Milović, Ljubica
AU  - Samardžić, Ivan
AU  - Zrilić, Milorad
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1366
AB  - The joints made by fusion of materials are exposed to the influence of residual stresses induced by welding thermal cycles. Residual stresses were measured on butt welded plates made of NIOMOL 490K, before and after reparation. The objective of this paper is to compare three methods of residual stress measurement (hole-drilling method, x-ray diffraction and directional effective permeability) induced by two welding processes (Submerge Arc Welding and Transferred Ionized Molten Energy) of V-butt welded plates. The residual stresses values are higher after reparation than before reparation of welded joints.
T2  - Strojarstvo
T1  - Acceptability of Residual Stresses Measurement Methods of Butt Weldments and Repairs
EP  - 331
IS  - 4
SP  - 323
VL  - 51
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1366
ER  - 

@article{
author = "Vuherer, Tomaz and Milović, Ljubica and Samardžić, Ivan and Zrilić, Milorad",
year = "2009",
abstract = "The joints made by fusion of materials are exposed to the influence of residual stresses induced by welding thermal cycles. Residual stresses were measured on butt welded plates made of NIOMOL 490K, before and after reparation. The objective of this paper is to compare three methods of residual stress measurement (hole-drilling method, x-ray diffraction and directional effective permeability) induced by two welding processes (Submerge Arc Welding and Transferred Ionized Molten Energy) of V-butt welded plates. The residual stresses values are higher after reparation than before reparation of welded joints.",
journal = "Strojarstvo",
title = "Acceptability of Residual Stresses Measurement Methods of Butt Weldments and Repairs",
pages = "331-323",
number = "4",
volume = "51",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1366"
}

Vuherer, T., Milović, L., Samardžić, I.,& Zrilić, M.. (2009). Acceptability of Residual Stresses Measurement Methods of Butt Weldments and Repairs. in Strojarstvo, 51(4), 323-331.
https://hdl.handle.net/21.15107/rcub_technorep_1366

Vuherer T, Milović L, Samardžić I, Zrilić M. Acceptability of Residual Stresses Measurement Methods of Butt Weldments and Repairs. in Strojarstvo. 2009;51(4):323-331.
https://hdl.handle.net/21.15107/rcub_technorep_1366 .

Vuherer, Tomaz, Milović, Ljubica, Samardžić, Ivan, Zrilić, Milorad, "Acceptability of Residual Stresses Measurement Methods of Butt Weldments and Repairs" in Strojarstvo, 51, no. 4 (2009):323-331,
https://hdl.handle.net/21.15107/rcub_technorep_1366 .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Vuherer, Tomaz
AU  - Zrilić, Milorad
AU  - Sedmak, Aleksandar
AU  - Putić, Slaviša
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1238
AB  - Global warming leads to research-development attempts worldwide with a view to reduce CO2 emission. Therefore, in the energy supply sector, a special focus has been directed to further development of steels that can endure the ultra-supercritical steam conditions. Our article presents the basic study on weldability of the advanced 9-12% chromium steel applying the thermomechanical simulation of the heat affected zone (HAZ). The changes of microstructures and material properties of HAZ before and after postweld heat treatment (PWHT) have been analyzed and compared by light microscopy, scanning electron microscopy (SEM), hardness measurements, and impact toughness testing. Microstructures at representative points during typical welding cycle and PWHT were studied in details.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Materials and Manufacturing Processes
T1  - Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel
EP  - 602
IS  - 6
SP  - 597
VL  - 23
DO  - 10.1080/10426910802160544
ER  - 

@article{
author = "Milović, Ljubica and Vuherer, Tomaz and Zrilić, Milorad and Sedmak, Aleksandar and Putić, Slaviša",
year = "2008",
abstract = "Global warming leads to research-development attempts worldwide with a view to reduce CO2 emission. Therefore, in the energy supply sector, a special focus has been directed to further development of steels that can endure the ultra-supercritical steam conditions. Our article presents the basic study on weldability of the advanced 9-12% chromium steel applying the thermomechanical simulation of the heat affected zone (HAZ). The changes of microstructures and material properties of HAZ before and after postweld heat treatment (PWHT) have been analyzed and compared by light microscopy, scanning electron microscopy (SEM), hardness measurements, and impact toughness testing. Microstructures at representative points during typical welding cycle and PWHT were studied in details.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Materials and Manufacturing Processes",
title = "Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel",
pages = "602-597",
number = "6",
volume = "23",
doi = "10.1080/10426910802160544"
}

Milović, L., Vuherer, T., Zrilić, M., Sedmak, A.,& Putić, S.. (2008). Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel. in Materials and Manufacturing Processes
Taylor & Francis Inc, Philadelphia., 23(6), 597-602.
https://doi.org/10.1080/10426910802160544

Milović L, Vuherer T, Zrilić M, Sedmak A, Putić S. Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel. in Materials and Manufacturing Processes. 2008;23(6):597-602.
doi:10.1080/10426910802160544 .

Milović, Ljubica, Vuherer, Tomaz, Zrilić, Milorad, Sedmak, Aleksandar, Putić, Slaviša, "Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel" in Materials and Manufacturing Processes, 23, no. 6 (2008):597-602,
https://doi.org/10.1080/10426910802160544 . .