引用本文:韩志海,徐滨士,王海军,蔡 江,周世魁.三种超音速热喷涂工艺制备WC-12Co涂层的组织结构分析[J].中国表面工程,2005,(3):23~27
.Analysis of Microstructure of WC-12Co Coatings Prepared by the Three Kinds of Supersonic Thermal Spraying Processes[J].China Surface Engineering,2005,(3):23~27
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三种超音速热喷涂工艺制备WC-12Co涂层的组织结构分析
韩志海1,2，徐滨士1，王海军1，蔡 江1，周世魁1
作者单位
摘要:
用新研制的超音速等离子喷涂(S—APS)和2种进口超音速火焰喷涂(HVOF)设备制备了WC—12Co涂层，分析了3种喷涂工艺对涂层的表面和断面显微形貌、组织结构、孔隙率和氧化、脱碳，以及涂层的显微硬度、结合强度的影响。结果表明，在所试验的条件下，超音速等离子喷涂WC—12Co涂层显示出最致密的组织结构和最高的显微硬度。
关键词:  超音速等离子喷涂(S?APS)  超音速火焰喷涂(HVOF)  WC?12Co涂层  显微形貌  组织结构
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基金项目:国家自然科学基金资助项目(50005024)
Analysis of Microstructure of WC-12Co Coatings Prepared by the Three Kinds of Supersonic Thermal Spraying Processes
HAN Zhi-hai1,2，XU Bin-shi1，WANG Hai-jun1，CAI Jiang1，ZhOU Shi-kui1
Abstract:
The WC-12Co coatings were sprayed by developed recently supersonic plasma spraying (S-APS) system and two kind of imported HVOF equipment. The influences of three kinds of supersonic thermal spraying processes on the microstructure of coatings, their porosities, microhardness and bonding strength, as well as the decarburization and oxidation of tungsten carbide were analysed. The results showed that S?APS sprayed WC?12Co coating exhibited excellent microstructure and microhardness.
Key words:  supersonic plasma spraying(S?APS)  HVOF  WC?12Co coatings  microstruture
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