Method for Determining Fatigue Limit Taking Into Account the Effect of a Surface Layer

A method is proposed for determining the fatigue limit of metallic material components based on measuring hardness, production residual stresses, surface roughness, and some other parameters. A dependence is given for fatigue limit on surface layer quality parameters. Application of the method is demonstrated on the example of steels 30KhGSNA, U8, titanium alloy VT3-1, and aluminum alloy D16 after different treatment.

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Correspondence to A. M. Shchipachev.

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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 5, pp. 41–45, May, 2017.

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Shchipachev, A.M. Method for Determining Fatigue Limit Taking Into Account the Effect of a Surface Layer. Chem Petrol Eng 53, 340–346 (2017). https://doi.org/10.1007/s10556-017-0345-3

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Keywords

  • fatigue limit
  • hardness
  • residual stresses
  • roughness
  • modified surface layers