Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating

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	Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating
	Du, Lingzhong 1; Huang, Chuanbing 1; Zhang, Weigang 1; Li, Tiegang 2; Liu, Wei 1
刊名	SURFACE & COATINGS TECHNOLOGY
	2011-03-15
卷号	205 期号:12 页码:3722-3728
关键词	NiCr/Cr3C2 Solid lubricant hBN Sliding wear Thermal spray coating
ISSN号	0257-8972
通讯作者	Du, LZ
英文摘要	NiCr clad hexagonal BN powder (NiCr/hBN) was added to NiCr/Cr3C2 feedstock to improve the tribological properties of chromium carbide nichrome coating. The microstructure, flowability and apparent density of the composite powder, as well as the structure and mechanical properties of the plasma sprayed coating were characterized. The friction and wear behavior of the NiCr/Cr3C2-NiCr/hBN coating from ambient temperature up to 800 degrees C was evaluated on a ball-on-disk wear tester and compared with that of NiCr/Cr3C2 coating and NiCr/Cr3C2-NiCr/BaF2-CaF2 coating. The results show that NiCr cladding can reduce the decarburization of Cr3C2 and oxidation of hBN during the thermal spray. The main wear mechanisms of the NiCr/Cr3C2-NiCr/hBN composite coating are ploughing and adhesive wear. Layered hexagonal BN particle reduce the direct contact and severe adhesion between friction pairs, thus decreasing the friction coefficient. The NiCr/Cr3C2-NiCr/hBN composite coating shows a promising application in the high temperature environment with the request of both wear resistance and friction reduction. (C) 2011 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]	NI-BASED SUPERALLOY ; CR3C2-NICR COATINGS ; BORON-NITRIDE ; TEMPERATURE ; BEHAVIOR ; MICROSTRUCTURE ; APS
收录类别	SCI
语种	英语
WOS记录号	WOS:000288571600026
公开日期	2013-11-07
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/5075]
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, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Toronto, Ctr Adv Coating Technol, Toronto, ON M5S 3G8, Canada
推荐引用方式 GB/T 7714	Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,et al. Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating[J]. SURFACE & COATINGS TECHNOLOGY,2011,205(12):3722-3728.
APA	Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,Li, Tiegang,&Liu, Wei.(2011).Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating.SURFACE & COATINGS TECHNOLOGY,205(12),3722-3728.
MLA	Du, Lingzhong,et al."Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating".SURFACE & COATINGS TECHNOLOGY 205.12(2011):3722-3728.