3682. WHITELEY, J. H. Observation on Martensite and Troostite. Jour. Iron Steel Inst. (London), vol. 111, 1925, pp. 315-349; Chem. Abs., vol. 19, 1925, p. 3462.
An investigation was made of the different structures of quenched and tempered steels, grouped under the terms martensite and troostite. The facts recorded indicate that martensite, like austenite, is a solid solution of carbide in a transitory form of Fe intermediate between γ-Fe and a-Fe of strong twining tendency. A series of photomicrographs (mostly X 850) accompanies the paper.