METHOD FOR PRODUCING LOW ALUMINIUM TITANIUM-ALUMINIUM ALLOYS

摘要

Disclosed herein is a method for producing a titanium-aluminium alloy containing less than about 15wt.% aluminium. The method comprises a first step in which an amount of titanium subchlorides at or in excess of the stoichiometric amount required to produce the titanium-aluminium alloy are reduced by aluminium to form a reaction mixture comprising elemental titanium, and then a second step in which the reaction mixture comprising elemental titanium is heated to form the titanium-aluminium alloy. The reaction kinetics are controlled such that reactions resulting in the formation of titanium aluminides are minimised.