| Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition | |
| Department | 固体润滑国家重点实验室 |
| Su, Fenghua1,2; Liu, Cansen1; Huang, Ping1 | |
| 2013 | |
| Source Publication | Wear
 |
| ISSN | 0043-1648 |
| Volume | 300Issue:1-2Pages:114-125 |
| Abstract | Nanocrystalline cobalt (Co) and cobalt-tungsten (Co-W) alloy coatings were produced by pulse reverse electrodepositon from an aqueous bath. The electrochemical corrosion and tribological properties of the coatings under different conditions were characterized. The results show that the corrosion resistance of the nanocrystalline Co is better than that of the nanocrystalline Co-W alloy coating due to its lower surface roughness and smaller grain size. The nanocrystalline Co-W alloy displays better wear resistance and friction reduction compared to the nanocrystalline Co coating. The friction coefficients and wear rates of the nanocrystalline Co-W alloy coating are affected by the counterpart materials and the test conditions including the applied load and sliding speed. The friction coefficient is raised by the ceramic surface although the increase is still relatively small to a steady-state values less than 0.32. The wear rates of the Co-W alloy coating at high load are slightly higher than those at low load. The increase of initial contact pressure between the coating and the counterpart balls and the hardness of the counterpart balls results in the decreased wear resistance for the Co-W alloy coating independent of applied loads. The wear mechanisms of the nanocrystalline Co and Co-W alloy coatings involved in different sliding conditions and counterpart materials are explained and related to their friction and wear properties. |
| Keyword | Sliding Wear Hardness Electrochemistry Surface Analysis Wear Testing |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.wear.2013.01.120 |
| Funding Organization | the National Natural Science Foundation of China (Grants: 51275176); the Fundamental Research Funds for the Central Universities (Grant No. 2011ZZ0055);Pearl River Science & Technology Star (2012J2200068) |
| Indexed By | SCI |
| If | 1.862 |
| Language | 英语 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18251 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Su, Fenghua |
| Affiliation | 1.S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Guangdong, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Su, Fenghua,Liu, Cansen,Huang, Ping. Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition[J]. Wear,2013,300(1-2):114-125. |
| APA | Su, Fenghua,Liu, Cansen,&Huang, Ping.(2013).Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition.Wear,300(1-2),114-125. |
| MLA | Su, Fenghua,et al."Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition".Wear 300.1-2(2013):114-125. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| LZ01027735.pdf（2412KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment