{"DOI":"10.1515/amm-2017-0085","abstract":"Abstract\nStructures 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 a bainitic type, accompanied by a change of properties, dimensional instability and the local increase in internal stress with the possible formation of cracks, can occur. The proportion of retained austenite is, therefore, a significant characteristics of the quality of hardened layers. This work deals with the evaluation of the volume fraction of retained austenite in carburized layers using image analysis on metallographic images.","author":[{"family":"V\u00e1\u0148ov\u00e1"},{"family":"Sojka"},{"family":"Kulov\u00e1"},{"family":"Joke\u0161ov\u00e1"},{"family":"Purt\u00e1tor"},{"family":"Spinu"}],"id":"unknown","issued":{"date-parts":[[2017,6,1]]},"page-first":"577","publisher":"Walter de Gruyter GmbH","title":"Using the Principles of Image Analysis in the Assessment of the Proportion of Retained Austenite in the Case Hardened Layers","type":"article-journal","volume":"62"}