Journal of Materials Science

, Volume 19, Issue 9, pp 2980–2988 | Cite as

Influence of retained austenite on the fatigue endurance of carbonitrided steels

  • J. M. Prado
  • J. L. Arques
Papers
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Abstract

The influence of retained austenite on the rotary bending fatigue endurance of carbonitrided specimens of two different steels is investigated. Results obtained in this work support the existence of a value of retained austenite for which the fatigue limit is maximum. A model for the influence of retained austenite, based on that generally accepted for superficial residual compressive stresses, is presented. According to this model, fatigue cracks could nucleate at different sites, surface or case bottom, in specimens with austenite contents at each side of the fatigue maximum, and this maximum should occur at lower values of retained austenite in notched specimens.

Keywords

Polymer Fatigue Austenite Fatigue Crack Compressive Stress 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Chapman and Hall Ltd 1984

Authors and Affiliations

  • J. M. Prado
    • 1
  • J. L. Arques
    • 1
  1. 1.Departmento de MetalurgiaEscuela Técnica Superior de Ingenieros IndustrialesBarcelonaSpain

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