Mechanical Characterization According to Mo Contents of the As-Casted Ti-xMo-2Fe Alloy

Abstract

Beta stabilizing elements cause high processing cost due to their high density and high melting point. Ti-xMo-2Fe alloy is metastable beta titanium alloy containing a low-cost beta stabilizing elements, and it is possible to secure excellent price competitiveness. Microstructure characterization and mechanical properties of a new designed Ti-xMo-2Fe alloys were investigated by Optical microscope, Vickers hardness, room temperature tensile test, in this study. The microstructure and mechanical properties were different depending on Mo contents, and Ti-9.2Mo-2Fe showed high hardness and brittle failure due to the high Mo content. As a result, Ti-3.4Mo-2Fe showed a tensile strength of 821.2 MPa and a high elongation of 10.3%.