电沉积裂纹Ni-W合金镀层的摩擦磨损性能  

Friction and Wear Properties of Electrodeposited Crack Ni-W Alloy Coating

作　　者：李东山[1] 徐立新[1] 王龙支[1] 

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730070

出　　处：《电镀与精饰》2014年第3期29-33,共5页Plating & Finishing

摘　　要：采用电沉积法在45#钢表面制备了表面有裂纹和无裂纹两种Ni-W合金镀层,研究了两种Ni-W合金镀层在干摩擦和润滑油条件下的摩擦磨损性能。研究结果表明,与无裂纹Ni-W合金镀层相比,裂纹Ni-W合金镀层的裂纹织构效应使得镀层在干摩擦和油润滑条件下表现为较低的摩擦系数和磨损率,其磨损率在干摩擦时降低了23%,在油润滑条件下降低了10%。结果表明,裂纹沉积Ni-W合金涂层与无裂纹沉积Ni-W合金涂层相比,具有更低的摩擦系数和磨损率作为干燥和油润滑条件下的表面纹理化的结果。Crack and crack-free Ni-W alloy coatings have been prepared on 45#steel surface by electroplating method.Friction and wear properties of the two coatings have been studied under dry and oil-lubricant conditions.Results show that compared with crack-free Ni-W alloy coating,the crack Ni-W alloy coating exhibits a lower friction coefficient and wear rate as a result of ＂ surface texturing effect＂ under both dry and oil-lubricant conditions.And the wear rate has been reduced by 23％ and 10％ under dry condition and oil-lubricant condition respectively.

关 键 词：Ni-W合金镀层 裂纹织构 摩擦系数 磨损率 

分 类 号：TQ153.2[化学工程—电化学工业]