Kinetics of martensitic transformation in Au–Cd alloys

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 observed 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.