[P] P85~P95

[P87] Phase boundary of Au-Cu-Al β phases, and the composition dependency of hysteresis width

*Kyoko Kubo¹, Yuki Matsuoka², Han Dong-Keun^3,4, Hideki Hosoda^3,4 (1. Graduate school of Humanities and Sciences, Nara Women's University, 2. Faculty, Nara Women's University, 3. Institute of Integrated Research, Materials and Structures Laboratory, Institute of Science Tokyo, 4. Laboratory for Future Interdisciplinary Research of Science and Technology, Institute of Science Tokyo)

Keywords:

マルテンサイト変態,状態図,β相,規則不規則変態

Au_50-xCu_25+xAl₂₅擬二元系状態図とAu₅₀Cu_25+xAl_25-x擬二元系状態図を作成した。Au₂CuAlからのCuの置換率に対するT₀の変化量が小さいAu₅₀Cu_25+xAl_25-x擬二元系の方がヒステリシス幅の変化も小さかった。