Microstructure and wear behaviour of Ni-based surface coating on copper substrate
文献类型：期刊论文
| 作者 | Lv JJ(吕晋军)
|
| 刊名 | Wear
 |
| 出版日期 | 2007 |
| 卷号 | 262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 |
| 通讯作者 | 杨贵荣 |
| 中文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000245063500013 |
| 公开日期 | 2013-11-01 |
| 源URL | [http://210.77.64.217/handle/362003/3994]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 推荐引用方式 GB/T 7714 | Lv JJ. Microstructure and wear behaviour of Ni-based surface coating on copper substrate[J]. Wear,2007,262:868-875. |
| APA | 吕晋军.(2007).Microstructure and wear behaviour of Ni-based surface coating on copper substrate.Wear,262,868-875. |
| MLA | 吕晋军."Microstructure and wear behaviour of Ni-based surface coating on copper substrate".Wear 262(2007):868-875. |
入库方式： OAI收割
来源：兰州化学物理研究所
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