Microstructure and wear behaviour of Ni-based surface coating on copper substrate

doi:10.1016/j.wear.2006.08.025

	Microstructure and wear behaviour of Ni-based surface coating on copper substrate
	Song, Wen-ming ; Yang, Gui-rong ; Lu, Jin-jun ; Hao, Yuan ; Ma, Ying
刊名	WEAR
	2007-03-15
卷号	262 期号:7-8 页码:868-875
关键词	copper alloy Ni-based powder vacuum infiltration casting technique dry sliding wear wear rate
ISSN号	0043-1648
DOI	10.1016/j.wear.2006.08.025
英文摘要	The Ni-based surface coatings were prepared by a vacuum infiltration casting technique on copper substrate. The surface coatings were fabricated through copper melt penetrating into thin preforms whose thickness could change. By optimizing the processing parameters, compact surface coatings were achievable as confirmed through SEM observation. The surface coating was mainly composed of solid solution of Ni, solid solution of Cu and CrB. The macro-hardness of the coating was about HRC 58, and the micro-hardness of the coating shows a gradient distribution. The average micro-hardness of the coating was about HV450. Wear behaviour was investigated by using block-on-ring dry sliding linear contact at several loads (50 N-300 N) and two different sliding speeds (0.424 m/s and 0.848 m/s). Wear rate and friction coefficient were estimated using a method founded upon the PV factor theory. The surface oxidation predominated as the principle wear mechanism at low load. Meanwhile, adhesion and oxidation mechanism were observed when the coatings were tested at higher load more than 200 N. Friction coefficient decreased with increasing load and sliding speed. (c) 2006 Elsevier B.V. All rights reserved.
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000245063500013
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35614]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Song, Wen-ming
作者单位	1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Key Lab Nonferrous Met Alloys, Minist Educ, Lanzhou 730050, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Song, Wen-ming,Yang, Gui-rong,Lu, Jin-jun,et al. Microstructure and wear behaviour of Ni-based surface coating on copper substrate[J]. WEAR,2007,262(7-8):868-875.
APA	Song, Wen-ming,Yang, Gui-rong,Lu, Jin-jun,Hao, Yuan,&Ma, Ying.(2007).Microstructure and wear behaviour of Ni-based surface coating on copper substrate.WEAR,262(7-8),868-875.
MLA	Song, Wen-ming,et al."Microstructure and wear behaviour of Ni-based surface coating on copper substrate".WEAR 262.7-8(2007):868-875.