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Using the Principles of Image Analysis in the Assessment of the Proportion of Retained Austenite in the Case Hardened Layers
2017
Archives of Metallurgy and Materials
Structures of carburized layers after the surface saturation process in gaseous, liquid or solid medium and after subsequent heat treatment (hardening and low-temperature tempering) consist mainly of high carbon plate martensite with a certain portion of retained austenite. The presence of retained austenite (RA) in carburized layers is mostly considered as undesirable because it decreases hardness of the hardened layer and furthermore, a spontaneous conversion to a ferritic-carbide mixture of
doi:10.1515/amm-2017-0085
fatcat:st75yvheufe3dnyzka3xwwik5u