TY  - JOUR
AU  - Vencl, Aleksandar A.
AU  - Mrdak, Mihailo
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4120
AB  - The aim of this study was to investigate the thermal cycling behaviour of NiCr-Al-Co-Y2O3 bond coating in thermal barrier coating (TBC) system with ZrO2-MgO as a top coating. The coatings were deposited by atmospheric plasma spraying (APS) on stainless steel X15Cr13 (EN 1.4024) substrate. The used composite powder NiCr-Al-Co-Y2O3 was mechanically cladded, and the steel substrates were preheated to 160-180 degrees C. The thermal cycling performance of the obtained bond coat and the effect of formed complex ceramic oxides of the Al2O3-Y2O3 system were tested by heating to 1200 degrees C and cooling in air to 160-180 degrees C. The number of performed thermal cycles was 7, 32 and 79. The quality of the obtained coating, as well as its thermal cycling behaviour, was assessed through the microstructural analysis, microhardness and tensile bond strength measurements, and change in chemical composition and microhardness. The obtained results showed that the steel substrate, bond coat oxidation and interdiffusion at bond coat/substrate interface have a significant influence on changes in chemical composition and microhardness of the bond coat. The correlation between oxidation behaviour of NiCr-Al-Co-Y2O3 bond coat and number of thermal cycles was also discussed.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Thermal cycling behaviour of plasma sprayed nicr-al-co-y2o3 bond coat in thermal barrier coating system
EP  - S1800
SP  - S1789
VL  - 23
DO  - 10.2298/TSCI180302374V
ER  - 

@article{
author = "Vencl, Aleksandar A. and Mrdak, Mihailo",
year = "2019",
abstract = "The aim of this study was to investigate the thermal cycling behaviour of NiCr-Al-Co-Y2O3 bond coating in thermal barrier coating (TBC) system with ZrO2-MgO as a top coating. The coatings were deposited by atmospheric plasma spraying (APS) on stainless steel X15Cr13 (EN 1.4024) substrate. The used composite powder NiCr-Al-Co-Y2O3 was mechanically cladded, and the steel substrates were preheated to 160-180 degrees C. The thermal cycling performance of the obtained bond coat and the effect of formed complex ceramic oxides of the Al2O3-Y2O3 system were tested by heating to 1200 degrees C and cooling in air to 160-180 degrees C. The number of performed thermal cycles was 7, 32 and 79. The quality of the obtained coating, as well as its thermal cycling behaviour, was assessed through the microstructural analysis, microhardness and tensile bond strength measurements, and change in chemical composition and microhardness. The obtained results showed that the steel substrate, bond coat oxidation and interdiffusion at bond coat/substrate interface have a significant influence on changes in chemical composition and microhardness of the bond coat. The correlation between oxidation behaviour of NiCr-Al-Co-Y2O3 bond coat and number of thermal cycles was also discussed.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Thermal cycling behaviour of plasma sprayed nicr-al-co-y2o3 bond coat in thermal barrier coating system",
pages = "S1800-S1789",
volume = "23",
doi = "10.2298/TSCI180302374V"
}

Vencl, A. A.,& Mrdak, M.. (2019). Thermal cycling behaviour of plasma sprayed nicr-al-co-y2o3 bond coat in thermal barrier coating system. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23, S1789-S1800.
https://doi.org/10.2298/TSCI180302374V

Vencl AA, Mrdak M. Thermal cycling behaviour of plasma sprayed nicr-al-co-y2o3 bond coat in thermal barrier coating system. in Thermal Science. 2019;23:S1789-S1800.
doi:10.2298/TSCI180302374V .

Vencl, Aleksandar A., Mrdak, Mihailo, "Thermal cycling behaviour of plasma sprayed nicr-al-co-y2o3 bond coat in thermal barrier coating system" in Thermal Science, 23 (2019):S1789-S1800,
https://doi.org/10.2298/TSCI180302374V . .

TY  - JOUR
AU  - Vencl, Aleksandar A.
AU  - Katavić, B.
AU  - Marković, D.
AU  - Ristić, M.
AU  - Gligorijević, Bojan
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2889
AB  - During the coal pulverizing, the working parts of the ventilation mill are being worn by the sand particles. For this reason, the working parts are usually protected with materials resistant to wear (hardfaced/thermal sprayed coatings). The aim of this study was to evaluate the tribological performance of four different types of coatings as candidates for wear protection of the mill's working parts. The coatings were produced by using the filler materials with the following nominal chemical composition: NiFeBSi-WC, NiCrBSiC, FeCrCTiSi, and FeCrNiCSiBMn, and by using the plasma arc welding and flame and electric arc spraying processes. The results showed that Ni-based coatings exhibited higher wear resistance than Fe-based coatings. The highest wear resistance showed coating produced by using the NiFeBSi-WC filler material and plasma transferred arc welding deposition process. The hardness was not the only characteristic that affected the wear resistance. In this context, the wear rate of NiFeBSi-WC coating was not in correlation with its hardness, in contrast to other coatings. The different wear performance of NiFeBSi-WC coating was attributed to the different type and morphological features of the reinforcing particles (WC).
PB  - Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac
T2  - Tribology in Industry
T1  - The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts
EP  - 329
IS  - 3
SP  - 320
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2889
ER  - 

@article{
author = "Vencl, Aleksandar A. and Katavić, B. and Marković, D. and Ristić, M. and Gligorijević, Bojan",
year = "2015",
abstract = "During the coal pulverizing, the working parts of the ventilation mill are being worn by the sand particles. For this reason, the working parts are usually protected with materials resistant to wear (hardfaced/thermal sprayed coatings). The aim of this study was to evaluate the tribological performance of four different types of coatings as candidates for wear protection of the mill's working parts. The coatings were produced by using the filler materials with the following nominal chemical composition: NiFeBSi-WC, NiCrBSiC, FeCrCTiSi, and FeCrNiCSiBMn, and by using the plasma arc welding and flame and electric arc spraying processes. The results showed that Ni-based coatings exhibited higher wear resistance than Fe-based coatings. The highest wear resistance showed coating produced by using the NiFeBSi-WC filler material and plasma transferred arc welding deposition process. The hardness was not the only characteristic that affected the wear resistance. In this context, the wear rate of NiFeBSi-WC coating was not in correlation with its hardness, in contrast to other coatings. The different wear performance of NiFeBSi-WC coating was attributed to the different type and morphological features of the reinforcing particles (WC).",
publisher = "Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac",
journal = "Tribology in Industry",
title = "The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts",
pages = "329-320",
number = "3",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2889"
}

Vencl, A. A., Katavić, B., Marković, D., Ristić, M.,& Gligorijević, B.. (2015). The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts. in Tribology in Industry
Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac., 37(3), 320-329.
https://hdl.handle.net/21.15107/rcub_technorep_2889

Vencl AA, Katavić B, Marković D, Ristić M, Gligorijević B. The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts. in Tribology in Industry. 2015;37(3):320-329.
https://hdl.handle.net/21.15107/rcub_technorep_2889 .

Vencl, Aleksandar A., Katavić, B., Marković, D., Ristić, M., Gligorijević, Bojan, "The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts" in Tribology in Industry, 37, no. 3 (2015):320-329,
https://hdl.handle.net/21.15107/rcub_technorep_2889 .