The black grains are the martensitic phase and the white the non-transformed austenite. The transformation does not involve diffusion processes but lattice displacement of atoms by shear produced by ...

Seljakow, J. Kurdumoff, and N. Goodtzow (NATURE, 119, 494; 1927), that quenched carbon steels contain a phase with a tetragonal crystal structure, which might be considered as a deformation of the ...

Pure iron can have two different crystal structures as its temperature is increased from ... The transition that determines the micro-structure of the alloy is a solid-state process: Austenite <-> ...