Letter Published: 01 January 1955 A Phase Diagram for 1 per cent Carbon–Iron Alloys containing up to 16 per cent Nickel P. SAMUEL, L. G. FINCH & J. R. RAIT Nature 175, 37–38 (1955) Cite this ...

The lower diagram illustrates the phase transition process and indicates that diffusion of carbon along the growing boundary between the austenite and the pearlite determines its lamella structure.