采用电刷镀技术在中碳钢表面制备厚度约为10μm的In/Ni组合镀层.研究高真空环境下In/Ni组合镀层的减摩润滑机理和微观损伤过程,并考察不同滑动速率和法向载荷对其真空摩擦学性能的影响.结果表明:在高真空环境下,该组合镀层具有明显的减摩和抗黏附磨损性能;镀层的摩擦因数随着滑动速率和法向载荷的增大而减小;磨损率随着载荷的增加而增大,但不随滑动速率发生显著变化;该镀层在高真空下的磨损机制主要为黏着磨损和擦伤磨损.
Abstract
An In/Ni combination coating with the thickness of about 10μm was prepared by electro-brush plating on the surface of medium carbon steel.The mechanisms of anti-friction and micro-damage process of the combination coating were studied.The influences of sliding velocity and normal load on the tribological properties of the coating in high vacuum were investigated.The results showed that the combination coating had good friction-reduction and adhesive wear resistance properties;the friction coefficient decreased with the increased of sliding velocity and normal load;the wear rate increased with the increased of load,but didn’t respond to sliding velocity remarkably.Abrasive wear and adhesive wear were the predominant wear mechanisms of the coating in high vacuum.
关键词
电刷镀 /
In/Ni组合镀层 /
真空环境 /
摩擦磨损
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Key words
electro-brush plating /
In/Ni combination coating /
vacuum environment /
friction and wear
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中图分类号：
TH117.3
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参考文献
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脚注
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基金
国家973计划资助项目(2007CB607601);北京自然基金资助项目(3072011)
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