The surface modification process of the artificial joint and an artificial joint

摘要

An artificial joint and the surface modification of the artificial joint are provided, in which the titanium coating layer is formed even after the titanium coating layer is formed on the surface of the Ti alloy. An artificial joint in which the oxide film inducing the micro-arc oxidation is formed comprises: a Ti alloy(1); a titanium coating layer(2) which is applied on the Ti alloy and is formed in order to prevent the elution of the composition of the Ti alloy; an oxide film(3) of the porosity formed in the titanium coating layer by the micro-arc oxidation.