Refinement of lamellar structures in Ti-Al alloy

• Published in: Acta materialia Vol. 125; pp. 81 - 97
• Main Authors: Wei, Dai-Xiu, Koizumi, Yuichiro, Nagasako, Makoto, Chiba, Akihiko
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.02.2017
• Subjects: Hot compression; Lamellar structure; Precipitation; Refinement; Titanium aluminide; Refinement; Precipitation; Lamellar structure; Hot compression; Titanium aluminide

The hot deformation behavior and refinement of Al-supersaturated α2-Ti3Al grains of Ti-40 at.% Al alloy were investigated by compression tests in a single α-hcp phase region at a strain rate of 1 s−1. Grains were significantly refined and homogenized by hot compression that produced more than a 50%...