Increasing the wear resistance of piston rings by plasma spraying

Conclusions A simple and economical method of coating piston rings with wear-resistant alloys has been proposed, in which plasma spraying is employed instead of electrodeposition. An optimum technique has been developed for the plasma spraying of sintered piston rings. It is proposed that Kh12M steel be used as the wear-resistant coating material. The sprayed layer exhibits a wear resistance which is 4 times higher than that of chromium-plated cast iron and causes less wear of mating materials.Translated from Poroshkovaya Metallurgiya, No. 5 (53), pp. 46–51, May, 1967.