Modification of fretting properties by ion implantation

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.