[S4] Materials Science and Technology in High-Entropy Alloys (XIII)

3:40 PM - 3:55 PM JST(6:40 AM - 6:55 AM UTC)

[S4.21] CALPHAD-Based Design of γ/γ′ Precipitation-Strengthened Ir–Rh–Co–Ti Alloys

○HAORAN Xie¹, Tatsuya Yanagidate², Kunihiro Shima², Yoko Yamabe-Mitarai¹ (1. The University of Tokyo, 2. TANAKA PRECIOUS METAL TECHNOLOGIES Co., Ltd.)

Keywords:

γ/γ′ microstructure,Ir–Rh–Co–Ti alloys,CALPHAD

Nine Ir–Rh–Co–Ti alloys were designed by CALPHAD to develop γ/γ′ microstructures. Phase stability, microstructures, and high-temperature mechanical properties were evaluated to establish design guidelines for platinum-group-metal-containing heat-resistant alloys.