Effect of Heat Treatment Conditions on Properties of WC-Co Coating AITranslate
Abstract AITranslate
WC-Co composite powder prepared by spray conversion was used to prepare WC-Co wear-resis-tant coating by HVOF spraying,and then heat treatment of the coating was performed at 550 ℃,750 ℃ and 950 ℃ in N2 and vacuum atmosphere,respectively.The effects of heat treatment conditions on phase,microstructure,hardness and wear resistance of the coating were studied.The results show that the coating heat-treated in vacuum atmosphere has lower decarburization degree and porosity than the coating heat-treated in N2 atmosphere.The hardness and the wear resistance of the coating can be significantly improve through heat treatment in vacuum atmosphere.The wear rate of the coating heat-treated in vacuum at 750 ℃ can be reduced to 47% of that of the sprayed coating,and its HV0.3 hardness reaches 1 550.
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Basic Information:
DOI：
Chinese Library Classification Number:TG174.44[金属学及工艺—金属表面处理]
Citation Information:
WC-Co composite powder prepared by spray conversion was used to prepare WC-Co wear-resis-tant coating by HVOF spraying,and then heat treatment of the coating was performed at 550 ℃,750 ℃ and 950 ℃ in N2 and vacuum atmosphere,respectively.The effects of heat treatment conditions on phase,microstructure,hardness and wear resistance of the coating were studied.The results show that the coating heat-treated in vacuum atmosphere has lower decarburization degree and porosity than the coating heat-treated in N2 atmosphere.The hardness and the wear resistance of the coating can be significantly improve through heat treatment in vacuum atmosphere.The wear rate of the coating heat-treated in vacuum at 750 ℃ can be reduced to 47% of that of the sprayed coating,and its HV0.3 hardness reaches 1 550.
quote
| GB/T 7714-2015 | [1] WANG Zhong-hua, LIU Yi-qiang, YU Yin-hong, et al. Effect of Heat Treatment Conditions on Properties of WC-Co Coating[J]. Rare Metals and Cemented Carbides, 2020(5): 23-28. |
| MLA | [1] WANG Zhong-hua, et al., "Effect of Heat Treatment Conditions on Properties of WC-Co Coating." Rare Metals and Cemented Carbides, no. 5, 2020, pp. 23-28. |
| APA | [1] WANG Zhong-hua, LIU Yi-qiang, YU Yin-hong, WU Jie, & LU Jian. (2020). Effect of Heat Treatment Conditions on Properties of WC-Co Coating. Rare Metals and Cemented Carbides(5), 23-28. |
| IEEE | [1] WANG Zhong-hua, LIU Yi-qiang, YU Yin-hong, WU Jie, and LU Jian, "Effect of Heat Treatment Conditions on Properties of WC-Co Coating," Rare Metals and Cemented Carbides, no. 5, pp. 23-28, 2020. keywords: {WC-Co;coating;spray conversion;high-velocity oxygen-fuel(HVOF)spraying;heat treatment;atmosphere;temperature} |