Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Friction and wear of nanocrystalline Co and Co-W alloy coatings produced by pulse reverse electrodeposition
	Su, Fenghua 1,2; Liu, Cansen 1; Huang, Ping 1
刊名	Wear
	2013
卷号	300 期号:1-2 页码:114-125
关键词	Sliding wear Hardness Electrochemistry Surface analysis Wear testing
ISSN号	0043-1648
通讯作者	Su, Fenghua
英文摘要	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.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	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)
语种	英语
WOS记录号	WOS:000318386700014
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18251]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	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
推荐引用方式 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.