Grain refinement of titanium alloys

摘要

As-cast titanium alloys characterized by fine grain structures are readily produced by inoculation of the alloys prior to or during the casting thereof with small amounts of at least one composition selected from the group consisting of titanium-0.4 to 15 weight percent carbon, titanium-1.4 to 6 weight percent nitrogen and titanium-1.3 to 10 weight percent oxygen.