A contribution to the kinetics of γ → αm transformation in Fe
Abstract The kinetics of γ → α m transformation in pure Fe have been determined in relation to the transformation interface velocity V and the driving force P (i.e. the difference in Gibbs free energy between parent and product phases) associated with the structural transformation. An experimental device for the implementation of the unidirectional transformation technique was constructed to measure V as a function of the interface temperature T . Velocities calculated with the Turnbull equation and an estimated value for the diffusion coefficient at the migrating interface are in good agreement with the measured velocity values.