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The effect of retained austenite on contact fatigue in Cr−Ni−W carburized steel

  • Retained Austenite in Steel
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Abstract

This article describes an experiment to determine the effect of retained austenite on the chipping of the case-hardened layer of Cr−Ni−W carburized steel by examining the same case-hardened layer with varying amounts of retained austenite after different heat treatments. The existence of a critical load level was established; contact fatigue resistance can be improved when the loads are above critical. This is determined by deformation of the austenite structure and substructure, the austenite-martensite transformation under the influence of the load, and the retention of the deformed austenite structure in the martensite.

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Authors
  1. Bertold B. Vinokur
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  2. Alexandr L. Geller
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Authors' Note: Alloyed steel compositions are presented in the Soviet standard. The first two numbers give the approximate carbon content in hundredths of a percent. The number after the element shows the approximate percentage of the alloying elements. The number one or no number at all means the percentage is about one or less.

Bertold B. Vinokur earned his Doctor of Technical Science in physics of metals and metal science at the Ukrainian Academy of Science, Ukraine, in 1978. He is currently retired. Dr. Vinokur is a member of TMS.

Alexandr L. Geller earned his Doctor of Technical Science in metal science and heat treatment at Donetsk Technical University, Ukraine, in 1997. He is currently an assistant professor in the Department of Materials Science and Engineering at Donetsk Technical University, Donetsk, Ukraine.

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Vinokur, B.B., Geller, A.L. The effect of retained austenite on contact fatigue in Cr−Ni−W carburized steel. JOM 49, 69–71 (1997). https://doi.org/10.1007/BF02914356

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  • DOI: https://doi.org/10.1007/BF02914356

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