TY  - JOUR
AU  - Marković, Snežana
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Jovanović, Aleksandar
AU  - Stojanović, Jovica
AU  - Trumić, Milan
AU  - Manojlović, Vaso
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7408
AB  - The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements.
AB  - Ispitivano  je  koroziono  ponašanje  tri  vrste legura(dva  nisko-legirana  ugljenična  čelika  i  jedanuzorakje nerđajuće gvožđe sa ~15% Cr), u rastvoru koji simulira morsku vodu (3% rastvor NaCl, pH 8,1). Ispitani uzorcise koriste za proizvodnju čeličnih kugli koje se primenjuju u mlinovima za mlevenje  bakarnih  i  drugih  ruda. Koroziona  ispitivanja  su  izvedena  primenom  tri  elektrohemijske metode, na sobnoj temperaturi u prisustvu atmosferskog kiseonika. Korišćene su metoda linearne polarizacione   otpornosti   (LPR),   metoda   elektrohemijske   impedansne   spektroskopije   (EIS)   i metoda  linearne  promene  potencijala  (LSV).  Na  osnovu  merenja  LPR  i  EIS  metodama  (kao nerazarajućim  metodama),  određena  je  vrednost  polarizacione  otpornosti  (Rp),   a   zatim   je izračunata vrednost brzine opšte korozije (vkor)  ispitivanih uzoraka.  Dobijene  vrednosti  za  brzinu opšte  korozije  se  mogu  koristiti  za  izračunavanje  veka  trajanja  kugli  u  uslovima  eksploatacije (morska  voda).  Izgled  površine  ispitivanih uzorakanakon  izvođenja  LSV  metode  pokazao  je prisustvo  lokalizovane  korozije  (formirane  su  jamice,  pitovi)  na  ispitivanim uzorcima,  posebno  na nerđajućem gvožđu. Prema tome, LSV metoda nije pogodna za određivanje brzine opšte korozije ispitivanih čelika u morskoj vodi. Ovaj oblik korozije javlja se pri visokim anodnim polarizacijama tokom izvođenja LSV merenja.
PB  - Inženjersko društvo za koroziju
T2  - Zaštita materijala
T1  - Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution
T1  - Koroziono ponašanje čeličnih kuglica za mlevenje sa visokim i niskim sadržajem hroma u rastvoru hlorida
EP  - 53
IS  - 1
SP  - 45
VL  - 65
DO  - 10.62638/zasmat998
ER  - 

@article{
author = "Marković, Snežana and Radojković, Bojana and Jegdić, Bore and Jovanović, Aleksandar and Stojanović, Jovica and Trumić, Milan and Manojlović, Vaso",
year = "2024",
abstract = "The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements., Ispitivano  je  koroziono  ponašanje  tri  vrste legura(dva  nisko-legirana  ugljenična  čelika  i  jedanuzorakje nerđajuće gvožđe sa ~15% Cr), u rastvoru koji simulira morsku vodu (3% rastvor NaCl, pH 8,1). Ispitani uzorcise koriste za proizvodnju čeličnih kugli koje se primenjuju u mlinovima za mlevenje  bakarnih  i  drugih  ruda. Koroziona  ispitivanja  su  izvedena  primenom  tri  elektrohemijske metode, na sobnoj temperaturi u prisustvu atmosferskog kiseonika. Korišćene su metoda linearne polarizacione   otpornosti   (LPR),   metoda   elektrohemijske   impedansne   spektroskopije   (EIS)   i metoda  linearne  promene  potencijala  (LSV).  Na  osnovu  merenja  LPR  i  EIS  metodama  (kao nerazarajućim  metodama),  određena  je  vrednost  polarizacione  otpornosti  (Rp),   a   zatim   je izračunata vrednost brzine opšte korozije (vkor)  ispitivanih uzoraka.  Dobijene  vrednosti  za  brzinu opšte  korozije  se  mogu  koristiti  za  izračunavanje  veka  trajanja  kugli  u  uslovima  eksploatacije (morska  voda).  Izgled  površine  ispitivanih uzorakanakon  izvođenja  LSV  metode  pokazao  je prisustvo  lokalizovane  korozije  (formirane  su  jamice,  pitovi)  na  ispitivanim uzorcima,  posebno  na nerđajućem gvožđu. Prema tome, LSV metoda nije pogodna za određivanje brzine opšte korozije ispitivanih čelika u morskoj vodi. Ovaj oblik korozije javlja se pri visokim anodnim polarizacijama tokom izvođenja LSV merenja.",
publisher = "Inženjersko društvo za koroziju",
journal = "Zaštita materijala",
title = "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution, Koroziono ponašanje čeličnih kuglica za mlevenje sa visokim i niskim sadržajem hroma u rastvoru hlorida",
pages = "53-45",
number = "1",
volume = "65",
doi = "10.62638/zasmat998"
}

Marković, S., Radojković, B., Jegdić, B., Jovanović, A., Stojanović, J., Trumić, M.,& Manojlović, V.. (2024). Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zaštita materijala
Inženjersko društvo za koroziju., 65(1), 45-53.
https://doi.org/10.62638/zasmat998

Marković S, Radojković B, Jegdić B, Jovanović A, Stojanović J, Trumić M, Manojlović V. Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zaštita materijala. 2024;65(1):45-53.
doi:10.62638/zasmat998 .

Marković, Snežana, Radojković, Bojana, Jegdić, Bore, Jovanović, Aleksandar, Stojanović, Jovica, Trumić, Milan, Manojlović, Vaso, "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution" in Zaštita materijala, 65, no. 1 (2024):45-53,
https://doi.org/10.62638/zasmat998 . .

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Trumić, Milan
AU  - Petrov, Milan
AU  - Pavlović, Ljubica
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5087
AB  - This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.
PB  - Hindawi Publishing Corporation
T2  - Advances in Materials Science and Engineering
T1  - A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill
SP  - 543857
VL  - 2013
DO  - 10.1155/2013/543857
ER  - 

@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Trumić, Milan and Petrov, Milan and Pavlović, Ljubica",
year = "2013",
abstract = "This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.",
publisher = "Hindawi Publishing Corporation",
journal = "Advances in Materials Science and Engineering",
title = "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill",
pages = "543857",
volume = "2013",
doi = "10.1155/2013/543857"
}

Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Trumić, M., Petrov, M.,& Pavlović, L.. (2013). A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering
Hindawi Publishing Corporation., 2013, 543857.
https://doi.org/10.1155/2013/543857

Andrić L, Terzić A, Aćimović-Pavlović Z, Trumić M, Petrov M, Pavlović L. A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering. 2013;2013:543857.
doi:10.1155/2013/543857 .

Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Trumić, Milan, Petrov, Milan, Pavlović, Ljubica, "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill" in Advances in Materials Science and Engineering, 2013 (2013):543857,
https://doi.org/10.1155/2013/543857 . .

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Aćimović-Pavlović, Zagorka
AU  - Trumić, Milan
AU  - Prstić, Aurel
AU  - Tanasković, Zorica
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5744
AB  - Investigations in this paper has been carried out in order to define the correlation between specific characteristics of coating glazes based on basalt, fired faience and appearance and the quality of the ceramic product surface. The paper presents the initial results of research on possibilities for utilisation of basalt from the locality " Vrelo" - Kopaonik Mountain (Serbia) for producing the opaque glaze.From frits with different basalt content (25%, 30%, 35%, and 60%) with addition of water and 5% of the kaolin " Zetlizer" the liquid glazes-suspensions were made (G-1/25, G-2/30, G-3/35, and G-4/60). The primary fired biscuit-shaped faience was used for applying the glazes by dipping, pouring and brushing methods. The further firing process of glazes took place in a laboratory tunnel furnace, under the following operating parameters: temperature T= 980 °C and retention time t= 3. h (hours).The initial investigation has shown that the basalt from the locality Vrelo is suitable for obtaining applicable glazes, bringing the attractive and decorative colours to the surfaces of the faience ceramics. The best results were achieved by adding the iron pigments.
PB  - Elsevier Ltd.
T2  - Materials and Design
T1  - Specific characteristics of coating glazes based on basalt
EP  - 13
SP  - 9
VL  - 39
DO  - 10.1016/j.matdes.2012.02.022
ER  - 

@article{
author = "Andrić, Ljubiša and Aćimović-Pavlović, Zagorka and Trumić, Milan and Prstić, Aurel and Tanasković, Zorica",
year = "2012",
abstract = "Investigations in this paper has been carried out in order to define the correlation between specific characteristics of coating glazes based on basalt, fired faience and appearance and the quality of the ceramic product surface. The paper presents the initial results of research on possibilities for utilisation of basalt from the locality " Vrelo" - Kopaonik Mountain (Serbia) for producing the opaque glaze.From frits with different basalt content (25%, 30%, 35%, and 60%) with addition of water and 5% of the kaolin " Zetlizer" the liquid glazes-suspensions were made (G-1/25, G-2/30, G-3/35, and G-4/60). The primary fired biscuit-shaped faience was used for applying the glazes by dipping, pouring and brushing methods. The further firing process of glazes took place in a laboratory tunnel furnace, under the following operating parameters: temperature T= 980 °C and retention time t= 3. h (hours).The initial investigation has shown that the basalt from the locality Vrelo is suitable for obtaining applicable glazes, bringing the attractive and decorative colours to the surfaces of the faience ceramics. The best results were achieved by adding the iron pigments.",
publisher = "Elsevier Ltd.",
journal = "Materials and Design",
title = "Specific characteristics of coating glazes based on basalt",
pages = "13-9",
volume = "39",
doi = "10.1016/j.matdes.2012.02.022"
}

Andrić, L., Aćimović-Pavlović, Z., Trumić, M., Prstić, A.,& Tanasković, Z.. (2012). Specific characteristics of coating glazes based on basalt. in Materials and Design
Elsevier Ltd.., 39, 9-13.
https://doi.org/10.1016/j.matdes.2012.02.022

Andrić L, Aćimović-Pavlović Z, Trumić M, Prstić A, Tanasković Z. Specific characteristics of coating glazes based on basalt. in Materials and Design. 2012;39:9-13.
doi:10.1016/j.matdes.2012.02.022 .

Andrić, Ljubiša, Aćimović-Pavlović, Zagorka, Trumić, Milan, Prstić, Aurel, Tanasković, Zorica, "Specific characteristics of coating glazes based on basalt" in Materials and Design, 39 (2012):9-13,
https://doi.org/10.1016/j.matdes.2012.02.022 . .