TY  - JOUR
AU  - Odanović, Zoran
AU  - Grabulov, Vencislav
AU  - Momčilović, Saša
AU  - Tasić, Boban
AU  - Đurđević, M.
AU  - Arsić, Miodrag
PY  - 2008
UR  - http://rims.institutims.rs/handle/123456789/79
AB  - As a part of the coal fired power stations a coal milling plant is important, as it supplies a coal and air mixture for combustion in a power plant. Coal milling plant is involved in wearing process, since the raw coal is an abrasive substance. Availability of milling plant is critical to the ability of coal fired power stations to generate electricity, and repair work can be expensive and time-consuming. The details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented in the paper. Repair was performed without disassemble of the wheel. Diameter of the wheel was 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS 17 CrMo 55. As the weldability of this steel is limited, a series of trial welds with different welding and thermal conditions were performed. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.
T2  - Welding in the World
T1  - Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station
EP  - 352
IS  - SPEC. ISS.
SP  - 347
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_rims_79
ER  - 

@article{
author = "Odanović, Zoran and Grabulov, Vencislav and Momčilović, Saša and Tasić, Boban and Đurđević, M. and Arsić, Miodrag",
year = "2008",
abstract = "As a part of the coal fired power stations a coal milling plant is important, as it supplies a coal and air mixture for combustion in a power plant. Coal milling plant is involved in wearing process, since the raw coal is an abrasive substance. Availability of milling plant is critical to the ability of coal fired power stations to generate electricity, and repair work can be expensive and time-consuming. The details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented in the paper. Repair was performed without disassemble of the wheel. Diameter of the wheel was 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS 17 CrMo 55. As the weldability of this steel is limited, a series of trial welds with different welding and thermal conditions were performed. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.",
journal = "Welding in the World",
title = "Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station",
pages = "352-347",
number = "SPEC. ISS.",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_rims_79"
}

Odanović, Z., Grabulov, V., Momčilović, S., Tasić, B., Đurđević, M.,& Arsić, M.. (2008). Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station. in Welding in the World, 52(SPEC. ISS.), 347-352.
https://hdl.handle.net/21.15107/rcub_rims_79

Odanović Z, Grabulov V, Momčilović S, Tasić B, Đurđević M, Arsić M. Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station. in Welding in the World. 2008;52(SPEC. ISS.):347-352.
https://hdl.handle.net/21.15107/rcub_rims_79 .

Odanović, Zoran, Grabulov, Vencislav, Momčilović, Saša, Tasić, Boban, Đurđević, M., Arsić, Miodrag, "Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station" in Welding in the World, 52, no. SPEC. ISS. (2008):347-352,
https://hdl.handle.net/21.15107/rcub_rims_79 .

TY  - CONF
AU  - Odanović, Zoran
AU  - Đurđević, M.
AU  - Grabulov, Vencislav
AU  - Sokolowski, J.
PY  - 2007
UR  - http://rims.institutims.rs/handle/123456789/69
AB  - The latent heat of solidification of any alloy depends on the chemistry and the microstructure developed during solidification process. Effects of chemistry on the release of the latent heat during solidification and influence of the cooling rate on the size of the Secondary Dendrite Arm Spacing (SDAS) of the Al-Si-Cu series of aluminium alloys for the following levels of silicon: 5, 7, 9 and to 11 wt. % Si, have been analysed. The solidification process, fraction solid analysis and latent heat release measured by the Differential Scanning Calorimeter (DSC) apparatus has been studied using cooling curves at different cooling rates ranging from 6, 10 and 50 °C/minute. The findings based on experimental results and their analysis indicate that increase in the Si content of the investigated alloys Al-Si(5-11)Cu1, shift the characteristic temperatures towards lower values and have considerable effect on the fraction solid and the amount of released latent heat. The effect of the cooling rates is not so significant.
C3  - Proceedings - European Metallurgical Conference, EMC 2007
T1  - Influence of Si content and cooling rates on the size of SDAS and the latent heat released in Al-Si(5-11)-Cu1 alloys
EP  - 1995
SP  - 1983
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_rims_69
ER  - 

@conference{
author = "Odanović, Zoran and Đurđević, M. and Grabulov, Vencislav and Sokolowski, J.",
year = "2007",
abstract = "The latent heat of solidification of any alloy depends on the chemistry and the microstructure developed during solidification process. Effects of chemistry on the release of the latent heat during solidification and influence of the cooling rate on the size of the Secondary Dendrite Arm Spacing (SDAS) of the Al-Si-Cu series of aluminium alloys for the following levels of silicon: 5, 7, 9 and to 11 wt. % Si, have been analysed. The solidification process, fraction solid analysis and latent heat release measured by the Differential Scanning Calorimeter (DSC) apparatus has been studied using cooling curves at different cooling rates ranging from 6, 10 and 50 °C/minute. The findings based on experimental results and their analysis indicate that increase in the Si content of the investigated alloys Al-Si(5-11)Cu1, shift the characteristic temperatures towards lower values and have considerable effect on the fraction solid and the amount of released latent heat. The effect of the cooling rates is not so significant.",
journal = "Proceedings - European Metallurgical Conference, EMC 2007",
title = "Influence of Si content and cooling rates on the size of SDAS and the latent heat released in Al-Si(5-11)-Cu1 alloys",
pages = "1995-1983",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_rims_69"
}

Odanović, Z., Đurđević, M., Grabulov, V.,& Sokolowski, J.. (2007). Influence of Si content and cooling rates on the size of SDAS and the latent heat released in Al-Si(5-11)-Cu1 alloys. in Proceedings - European Metallurgical Conference, EMC 2007, 4, 1983-1995.
https://hdl.handle.net/21.15107/rcub_rims_69

Odanović Z, Đurđević M, Grabulov V, Sokolowski J. Influence of Si content and cooling rates on the size of SDAS and the latent heat released in Al-Si(5-11)-Cu1 alloys. in Proceedings - European Metallurgical Conference, EMC 2007. 2007;4:1983-1995.
https://hdl.handle.net/21.15107/rcub_rims_69 .

Odanović, Zoran, Đurđević, M., Grabulov, Vencislav, Sokolowski, J., "Influence of Si content and cooling rates on the size of SDAS and the latent heat released in Al-Si(5-11)-Cu1 alloys" in Proceedings - European Metallurgical Conference, EMC 2007, 4 (2007):1983-1995,
https://hdl.handle.net/21.15107/rcub_rims_69 .