The Effects of Cr and Mo on the Microstructure and Mechanical Properties of As-Cast TiAl Alloys

Abstract

Abstract. The effect of the microstructure and mechanical properties locally made arc-melting to identify the phases present in the samples. The micr samples was characterized using scanning electron microscop energy dispersive spectroscopy (EDS). Compression tests were carried out at room temperature using show that the Ti-48Al alloy exhibited addition of Cr a nearly lamellar microstructure was observed in Ti with the addition of both Cr and Mo values increased slightly the alloying elements. The presence of Cr in Ti increase in compressive fracture strain. produced a higher yield strength and fracture str to the other as-cast TiAl alloys. alloys, mixed brittle transgranular and interlamellar fracture modes were predominantly observed.