Kinetics of martensitic transformation in Au-Cd alloys

Hiroyuki Saitoh, Masayoshi Fujimoto, Hiroshi Abe1,
         Yoshie Matsuo2 and Ken-ichi Ohshima

Institute of Materials Science, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8573, Japan
1Department of Materials Science and Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka 239-8686, Japan
2Department of Physics, Nara Women's University, Kitauoya-Higasi, Nara 630-8506, Japan

Mater. Sci. & Eng. A312 (2000) 20.

    Martensitic transformation temperatures, Ms Mf, As and Af, of an annealed Au-47.5at.%Cd-0.75at.%Cu alloy were obtained by X-ray diffraction method and electrical resistivity measurement. It is confirmed that the four values obtained by these two methods are in good agreement within an experimental error. The incubation time for the low temperature phase was obtained during the isothermal holding above Ms, from the time dependence of Bragg intensity. The incubation time becomes shorter when the set temperature is close to Ms.

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