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Formation mechanism of the lubrication film on the plasma sprayed NiCoCrAlY-Cr2O3-AgMo coating at high temperatures
Zhang, Tiantian1,2; Lan, Hao1; Huang, Chuanbing1; Du, Lingzhong1; Zhang, Weigang1
2017-06-15
发表期刊SURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
卷号319页码:47-54
摘要A self-lubricating NiCoCrAIY-Cr2O3-AgMo composite coating was deposited by atmospheric plasma spray technology. Phase composition, microstructure and thermal behavior of this coating were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Thermogravimetric Analysis (TGA) respectively. Tribological tests of this coating were conducted at 500 degrees C with different normal loads and sliding velocities. The results showed that the AgMo-containing composite coating exhibited lower friction coefficients around 0.3 at 10 N normal loads due to the formation of Ag2MoO4. However, Ag2MoO4 could not be formed under lower normal load at the critical temperature of 500 degrees C. Further investigation on the long-term wear behaviors of the coating revealed that the excellent friction reduction and wear resistance performance of the AgMo-containing composite coating at elevated temperatures could be ascribed to a liquid Ag2MoO4 film spreading on the upper surface and a dense oxide protective layer underneath. (C) 2017 Published by Elsevier B.V.
关键词Self-lubricating Plasma-spray Solid Lubricant Silver Molybdate
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.surfcoat.2017.03.065
收录类别SCI
语种英语
关键词[WOS]CRYSTAL-CHEMICAL APPROACH ; TRIBOLOGICAL PROPERTIES ; COMPOSITE COATINGS ; TI6AL4V ALLOY ; DEGREES-C ; COMPONENTS ; PROPERTY ; NICKEL ; SILVER ; PM212
WOS研究方向Materials Science ; Physics
WOS类目Materials Science, Coatings & Films ; Physics, Applied
项目资助者National Natural Science Foundation of China(51471159 ; 51671180)
WOS记录号WOS:000402357300006
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22633
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Lab Particle Sci & Engn, State Key Lab Multiphase Complex Syst, 1 Bei Er Jie, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Zhang, Tiantian,Lan, Hao,Huang, Chuanbing,et al. Formation mechanism of the lubrication film on the plasma sprayed NiCoCrAlY-Cr2O3-AgMo coating at high temperatures[J]. SURFACE & COATINGS TECHNOLOGY,2017,319:47-54.
APA Zhang, Tiantian,Lan, Hao,Huang, Chuanbing,Du, Lingzhong,&Zhang, Weigang.(2017).Formation mechanism of the lubrication film on the plasma sprayed NiCoCrAlY-Cr2O3-AgMo coating at high temperatures.SURFACE & COATINGS TECHNOLOGY,319,47-54.
MLA Zhang, Tiantian,et al."Formation mechanism of the lubrication film on the plasma sprayed NiCoCrAlY-Cr2O3-AgMo coating at high temperatures".SURFACE & COATINGS TECHNOLOGY 319(2017):47-54.
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