Grain Refinement in Cast Ti‐46Al‐8Nb AND Ti‐46Al‐8Ta Alloys via Massive Transformation

Abstract

Grain refinement in cast Ti-46Al-8Nb and Ti-46Al-8Ta alloys produced via heat treatment using massive transformation has been investigated using SEM and X-ray diffraction analysis. The massive transformation technique was confirmed to be an appropriate method for breaking down coarse grained structures, at least in small-sized sample bars. Some critical issues related to the massive transformation technique were identified and discussed.