| Microstructure and wear behaviour of Ni-based surface coating on copper substrate | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Song WM(宋文明); Yang GR(杨贵荣); Lv JJ(吕晋军) ; Hao Y(郝远); Ma Y(马颖)
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| 2007 | |
| Source Publication | Wear
 |
| ISSN | 0043-1648 |
| Volume | 262Pages:868-875 |
| Abstract | 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. |
| Keyword | Copper Alloy Ni-based Powder Vacuum Infiltration Casting Technique Dry Sliding Wear Wear Rate |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the Chun-Hui Plan of the Education Department of China project (Z2004-1-62013);the Young Teacher Startup Foundation project at Lanzhou University of Technology |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 金属基高温润滑材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3994 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Yang GR(杨贵荣) |
| Recommended Citation GB/T 7714 | Song WM,Yang GR,Lv JJ,et al. Microstructure and wear behaviour of Ni-based surface coating on copper substrate[J]. Wear,2007,262:868-875. |
| APA | 宋文明,杨贵荣,吕晋军,郝远,&马颖.(2007).Microstructure and wear behaviour of Ni-based surface coating on copper substrate.Wear,262,868-875. |
| MLA | 宋文明,et al."Microstructure and wear behaviour of Ni-based surface coating on copper substrate".Wear 262(2007):868-875. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2007868-875.pdf（2174KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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