中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effect of NiCr Clad BaF2 center dot CaF2 Addition on Wear Performance of Plasma Sprayed Chromium Carbide-Nichrome Coating

文献类型:期刊论文

作者Du, Lingzhong1; Huang, Chuanbing1; Zhang, Weigang1; Zhang, Jingmin2; Liu, Wei1
刊名JOURNAL OF THERMAL SPRAY TECHNOLOGY
出版日期2010-03-01
卷号19期号:3页码:551-557
关键词metal-matrix composite solid lubricant coating sliding wear thermal spray coating wear testing
ISSN号1059-9630
通讯作者Du, LZ
英文摘要NiCr clad BaF2 center dot CaF2 fluoride eutectic powders were added into chromium carbide-nichrome feedstock to improve the tribological properties of NiCr-Cr3C2 coating, and the structures, mechanical, and ball-on-disk sliding wear performance of the coating were characterized. The results show that NiCr cladding can effectively decrease the density and thermophysical difference between the feedstock components, while alleviate the decarburization and oxidization of the constituent phases, and form the coating with a uniform and dense microstructure. However, the addition of BaF2 center dot CaF2 has a negative effect on mechanical properties of the coating. When the temperature reaches 500 A degrees C, the BaF2 center dot CaF2 eutectic is soften by the heat and smeared by the counterpart, thus the low shear stress lubricating film forms between the contact surface, that improves the tribological properties dramatically. At this temperature, the dominant wear mechanisms also change from splats spallation and abrasive wear at room temperature to plastic deformation and plawing by the counterpart. Within the temperature range from 600 to 800 A degrees C, the friction coefficient, the wear rates of NiCr/Cr3C2-10% BaF2 center dot CaF2 coating and its coupled Si3N4 ball are 20%, 40%, and 75% lower than those of the NiCr/Cr3C2 coating, respectively. The NiCr/Cr3C2-BaF2 center dot CaF2 coating shows superior wear performance to the NiCr/Cr3C2 coating without lubricant additive.
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Coatings & Films
研究领域[WOS]Materials Science
关键词[WOS]CR3C2-NICR COATINGS ; HVOF
收录类别SCI
语种英语
WOS记录号WOS:000274904200004
公开日期2013-11-27
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/6206]  
专题过程工程研究所_多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100080, Peoples R China
2.China Iron & Steel Res Inst Grp, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,et al. Effect of NiCr Clad BaF2 center dot CaF2 Addition on Wear Performance of Plasma Sprayed Chromium Carbide-Nichrome Coating[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2010,19(3):551-557.
APA Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,Zhang, Jingmin,&Liu, Wei.(2010).Effect of NiCr Clad BaF2 center dot CaF2 Addition on Wear Performance of Plasma Sprayed Chromium Carbide-Nichrome Coating.JOURNAL OF THERMAL SPRAY TECHNOLOGY,19(3),551-557.
MLA Du, Lingzhong,et al."Effect of NiCr Clad BaF2 center dot CaF2 Addition on Wear Performance of Plasma Sprayed Chromium Carbide-Nichrome Coating".JOURNAL OF THERMAL SPRAY TECHNOLOGY 19.3(2010):551-557.

入库方式: OAI收割

来源:过程工程研究所

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