The heat treatment method and heat treatment apparatus

The method of heat treatment of the alloy of the present invention comprises a multi-stage according to the temperature of the phase change, the contact member is set to a predetermined heating temperature of the heat treatment time is less than 0.01 seconds to 3.0 seconds in contact with the alloy, the alloy generates a ready state of the preliminary step of generating state, the predetermined temperature is a preliminary state of the first transition of the first predetermined temperature associated with the alloy and the second temperature-dependent transitions than the second predetermined high temperature of the first alloy determined generating a temperature within the range.