Decomposition of Martensitic Steel Above and Below 300°C


DURING the course of an investigation concerning metallurgical structures employing both the electron microscope and electron diffraction reflexion methods, some interesting, and perhaps important, results were obtained with a plain carbon steel. The literature dealing with the tempering of martensite at low temperatures generally assumes that the decomposition below 300° C. produces a very highly dispersed carbide phase1. It was generally concluded that the carbide particles are so small and are sufficiently deformed by stresses set up during precipitation that a satisfactory X-ray pattern could not be expected.

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  1. 1

    Barrett, C. S., "Structure of Metals" (McGraw-Hill, New York 1943), 479,

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HEIDENREICH, R., STURKEY, L. & WOODS, H. Decomposition of Martensitic Steel Above and Below 300°C. Nature 157, 518 (1946) doi:10.1038/157518b0

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