[S1] ハイエントロピー合金の材料科学Ⅲ（1）

[S1.2] Effect of elemental combination on microstructure and mechanical properties of quaternary refractory medium entropy alloys

*HE QIAN¹, Yoshida Shuhei¹, Yasuda Hideyuki¹, Tsuji Nobuhiro^1,2 (1. Dept. of Material Science and Engineering, Kyoto University、2. Elements Strategy Initiative for Structural Materials (ESISM), Kyoto University)

キーワード：Refractory medium entropy alloys、Elemental combination、Homogenization、Microstructure、Mechanical properties

The reason for the ductility improvement in the homogenized RMEAs was explained by the removal of dendritic segregation and elimination of second-phase precipitates at grain boundaries.