Research on gelcasting technology of TC4 titanium alloy
Gelcasting technology,as a low-cost near net shape powder metallurgy method,addresses the complexi-ties,processing difficulties,and high costs associated with traditional titanium alloy smelting techniques.In this ar-ticle,equal proportions of TC4 titanium alloy hydrogenated dehydrogenation powder and spherical powder are used as raw materials,employing a low oxygen MBAM-HEMA binder system to formulate a slurry with good flowability and high solid content.This slurry has a solid volume fraction of 55％,a HEMA monomer concentra-tion of 30％,and an oleic acid mass fraction of 0.60％.Following forming,degreasing,and sintering,TC4 titanium alloy with a relative density of 99.5％,tensile strength of 1 002 MPa,yield strength of 933 MPa,and elongation of 8.3％is produced.This alloy meets the practical needs of most titanium parts and holds significant potential for applications in titanium structural and decorative components.
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