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Determination of Residual Stresses in Surface Layers Upon Ion Nitriding by Microhardness Values

We present the results of investigations on the value and distribution of residual stresses in surface layers of 20Kh13 steel upon ion nitriding in hydrogen-free media. The effect of nitriding parameters on the depth and hardness of the nitrided layer as well as on residual stresses in the surface layer is analyzed. The procedure for the determination of residual stresses at the arbitrary point of the nitrided layer depth by the microhardness values at the given point is developed.

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Correspondence to P. V. Kaplun.

Additional information

Translated from Problemy Prochnosti, No. 6, pp. 56 – 63, November – December, 2016.

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Kaplun, P.V., Lyashenko, B.A. Determination of Residual Stresses in Surface Layers Upon Ion Nitriding by Microhardness Values. Strength Mater 48, 777–783 (2016). https://doi.org/10.1007/s11223-017-9824-1

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Keywords

  • residual stresses
  • ion nitriding
  • nitrided layer
  • microhardness