Patent ID: 8252130
Filing Date: 2012-08-28
Classification: B24C,C23C,Y10T

Abstract:
1. A surface processing method for a titanium alloy member for aerospace equipment having high wear resistance, lubricity and high fatigue strength, said method consisting of: an oxygen diffusion operation using low pressure plasma processing which causes oxygen to diffuse and penetrate in solid solution form into a surface of a titanium alloy member under an oxygen-containing gas atmosphere by heating the titanium alloy member to a temperature of 400 to 900° C. at a pressure of 10 at least one shot peening operation of bombarding the surface of the titanium alloy member with an airflow containing fine particles at an injection pressure of 0.2 to 1 MPa, the fine particles having a particle size of 3 to 500 μm.