METHOD FOR HEAT TREATING CAST TITANIUM ARTICLES TO IMPROVE THEIR MECHANICAL PROPERTIES

摘要

Cast titanium alloys and a method of heat treating the alloys in order to obtain fatigue and mechanical properties comparable to wrought titanium is disclosed. The heat treatment is practiced by solution heat treating a cast titanium article above its beta transus, rapidly cooling, stabilizing at a temperature within the alloy's alpha/beta phase range, and finally aging the article to achieve the desired properties.