中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Sliding wear behavior of the supersonic plasma sprayed WC-Co coating in oil containing sand

文献类型:期刊论文

作者Du, Lingzhong1; Xu, Binshi2; Dong, Shiyun2; Zhang, Weigang1; Zhang, Jingmin3; Yang, Hua2; Wang, Haijun2
刊名SURFACE & COATINGS TECHNOLOGY
出版日期2008-04-25
卷号202期号:15页码:3709-3714
关键词supersonic plasma spray WC-Co wear oil lubrication sand
ISSN号0257-8972
其他题名Surf. Coat. Technol.
中文摘要To improve the wear resistance of the cylinder liner of the engines operating in desert area, the tungsten carbide-based cermet coating (WC-12wt.%Co) was produced using the supersonic plasma spraying technique. The microstructure and phase composition of the as-sprayed coating were evaluated. The effect of sand size in lubricant on the friction and wear behavior of the coating under the lubrication of oil containing sand was investigated on a ball-on-disk tribometer. Characterization of the coating shows that the coating possesses dense microstructure with low level of porosity. The decarburization of WC is limited for the high particle velocity of the supersonic plasma spraying and only a few of W2C phases are observed in the coating. With the higher hardness and the good adhesion with the substrate the sprayed coating exhibits a better wear resistance compared with the gray casting iron used in the current cylinder liner. Micro-structural examination shows that the wear of coating is dominated by micro-cutting, WC particles pull-out and sub-surface indentation-induced sub-surface cracking, while the main wear mechanism of the gray casting iron is micro-cutting and plastic deformation. (C) 2008 Elsevier B.V. All rights reserved.
英文摘要To improve the wear resistance of the cylinder liner of the engines operating in desert area, the tungsten carbide-based cermet coating (WC-12wt.%Co) was produced using the supersonic plasma spraying technique. The microstructure and phase composition of the as-sprayed coating were evaluated. The effect of sand size in lubricant on the friction and wear behavior of the coating under the lubrication of oil containing sand was investigated on a ball-on-disk tribometer. Characterization of the coating shows that the coating possesses dense microstructure with low level of porosity. The decarburization of WC is limited for the high particle velocity of the supersonic plasma spraying and only a few of W2C phases are observed in the coating. With the higher hardness and the good adhesion with the substrate the sprayed coating exhibits a better wear resistance compared with the gray casting iron used in the current cylinder liner. Micro-structural examination shows that the wear of coating is dominated by micro-cutting, WC particles pull-out and sub-surface indentation-induced sub-surface cracking, while the main wear mechanism of the gray casting iron is micro-cutting and plastic deformation. (C) 2008 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Materials Science, Coatings & Films ; Physics, Applied
研究领域[WOS]Materials Science ; Physics
关键词[WOS]CERMET COATINGS ; RESISTANCE ; HARDMETALS ; FUEL
收录类别SCI
原文出处://WOS:000255492700035
语种英语
WOS记录号WOS:000255492700035
公开日期2013-10-08
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/2740]  
专题过程工程研究所_研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China
2.Natl Key Lab Remfg, Beijing 100072, Peoples R China
3.China Iron & Steel Res Inst Grp, Beijing 100072, Peoples R China
推荐引用方式
GB/T 7714
Du, Lingzhong,Xu, Binshi,Dong, Shiyun,et al. Sliding wear behavior of the supersonic plasma sprayed WC-Co coating in oil containing sand[J]. SURFACE & COATINGS TECHNOLOGY,2008,202(15):3709-3714.
APA Du, Lingzhong.,Xu, Binshi.,Dong, Shiyun.,Zhang, Weigang.,Zhang, Jingmin.,...&Wang, Haijun.(2008).Sliding wear behavior of the supersonic plasma sprayed WC-Co coating in oil containing sand.SURFACE & COATINGS TECHNOLOGY,202(15),3709-3714.
MLA Du, Lingzhong,et al."Sliding wear behavior of the supersonic plasma sprayed WC-Co coating in oil containing sand".SURFACE & COATINGS TECHNOLOGY 202.15(2008):3709-3714.

入库方式: OAI收割

来源:过程工程研究所

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