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
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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. |
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