离子注入改善电接触微动磨损研究

Modification of fretting properties by ion implantation

以AgCu10合金为对象 ,研究和探讨了离子注入提高电接触材料的抗氧化和抗磨损性能并改善电接触微动磨损的技术。试验结果表明 ,离子注入后的AgCu10合金大大减少了磨损颗粒的产生 ,降低了磨损过程中产生的金属转移 ,减轻了磨损颗粒的氧化污染 ,从而提高合金表面耐磨损和抗腐蚀性能 。

So far, fretting induced failures in electrical contact is an important subject, but has not been paid much attention in experimental investigations. In order to improve the assistance to oxidation and wear of electrical contact materials, a investigation has been made of the ion implantation of AgCu10 alloy. It is indicated that the implantation of yttrium remarkably inhibits the formation of abrasive particles and depresses the migration of metals. Also it is found that the implantation of yttrium can effectively resist the surfacial oxidation. As a result, the ion implantation can substantially improve the resistance to metal removal and corrosion of the AgCu10 alloy, enhancing the fretting properties and reducing the contact resistance of the alloy.