A novel experimental approach to identifying kinetic transitions in solid state phase transformations

A Fe–1Ni/Fe–5Ni (wt.%) diffusion couple carburised to 0.1 C (wt.%) has been used to examine the kinetic transitions during the γ→(γ+α) transformation that occur with changes in Ni content. The wide range of applicability of such a combinatorial approach for studying transitions in behaviour in metallurgical phenomenon is emphasised.