Methods to reduce production cost of titanium alloy products by blended elemen- tal powder metallurgy were investigated form the various viewpoints. The cost for Cold Isostatic Pressing can be considerably reduced by replacing the conventional Rubber model to one-time use type mold made of thermo-plastic resin. Optimization Of powder size distribution and an addition of small amount of B_4C or Y_2O_3 with Devised means make it possible to achieve both high density ratio of more than 899.5/100 And refined microstructures in an as-sintered condition without detrimental increase Of oxgyen content, resulting in excellent mechanical properties competitive to those Of Hot Isostatic Pressed materials. Furthermore, low cost Ti-Fe-Al based alloys and The reduction of machining cost are also discussed.
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