Influence of Containerless Solidification on Hardness In Multifunctional Titanium Based Alloys

摘要

A novel synthesis procedure of multifunctional Ti based alloy was suggested under containerless processing using an electromagnetic levitation furnace. In this method, necessary condition to synthesize the alloys with ability of a dislocation-free plastic deformation was determined. That was supported by microstructural observation, hardness measurement and X-ray analysis of the alloys solidified from several undercoolings. The maximum undercooling of the alloy melt was up to 120K. Synthesized alloys that met the condition showed refined microstractures, increase of d-value of (110) plane and a tiny deviation of hardness by cold-working. Others partially occurred stress-induced transformation.