| The electrodeposition and characterisation of low-friction and wear-resistant Co-Ni-P coatings | |
| Department | 固体润滑国家重点实验室 |
Ma, C.1; Wang, S. C.1; Wang LP(王立平)2 ; Walsh, F. C.1,3; Wood, R. J. K.1
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| 2013 | |
| Source Publication | Surface and Coatings Technology
 |
| ISSN | 0257-8972 |
| Volume | 235Pages:495-505 |
| Abstract | A new Co-Ni-P coating having superior properties to hard chrome coatings for anti-wear applications has been developed by combining the precipitation hardening of Ni-P alloys with the lubricity of cobalt-rich Co-Ni coatings. The evolution of composition and microstructure, hardness, thermal stability and tribological properties have been investigated. The local pH value near the cathode played an important role in the change of the microstructure from nanoctystalline to amorphous along the growth direction as the phosphorous content increased from 7 at.% to 26 at.%. The highest microhardness (980 HV) and the lowest wear rate (one order of magnitude lower than that of hard chrome coatings under the same dry sliding conditions) were achieved by annealing the coatings at 400 ℃ facilitating precipitation hardening. Furthermore, the coefficients of friction of both the as-deposited Co-Ni-P coating and the heat-treated samples were approximately 03, only half of that of hard chrome coatings. The wear rates of Co-Ni-P coatings annealed up to 400 ℃ are 4-7 times lower compared to that of hard chrome. The roll-like debris found on the worn surfaces of the coating annealed at 500 ℃ were oriented perpendicularly to the sliding direction. Such part might be related to the slightly reduced coefficient of friction in the stable stage. |
| Keyword | Co-ni-p Friction Microstructure Heat Treatment Wear |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.surfcoat.2013.08.009 |
| Funding Organization | ICUK |
| Indexed By | SCI |
| If | 2.199 |
| Language | 英语 |
| Funding Project | 低维材料摩擦学组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18242 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Wang, S. C. |
| Affiliation | 1.Univ Southampton, nCATS, Southampton SO17 1BJ, Hants, England 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 3.Univ Southampton, Southampton SO17 1BJ, Hants, England |
| Recommended Citation GB/T 7714 | Ma, C.,Wang, S. C.,Wang LP,et al. The electrodeposition and characterisation of low-friction and wear-resistant Co-Ni-P coatings[J]. Surface and Coatings Technology,2013,235:495-505. |
| APA | Ma, C.,Wang, S. C.,Wang LP,Walsh, F. C.,&Wood, R. J. K..(2013).The electrodeposition and characterisation of low-friction and wear-resistant Co-Ni-P coatings.Surface and Coatings Technology,235,495-505. |
| MLA | Ma, C.,et al."The electrodeposition and characterisation of low-friction and wear-resistant Co-Ni-P coatings".Surface and Coatings Technology 235(2013):495-505. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| LZ01027722.pdf（2367KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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