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Structure and Contact Fatigue Strength of Heat-Resistant Steel VKS-7 Hardened Layers After Ion-Plasma Nitriding

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Metallurgist Aims and scope

Structure is studied for diffusion layers of heat-resistant steel 16Kh2N3MFBAYu-Sh prepared by ion-plasma nitriding, and their phase composition is established represented by ultra-finely dispersed incoherent chromium nitride particles in a solid solution matrix. Contact fatigue strength of the nitrided layer prepared by an optimized regime is determined by experiment. A feature is established for the effect of nitride layer thickness on contact fatigue strength for heat-resistant steel alloyed with nickel. Nitriding regimes are recommended for treating low modulus gear wheels and other similar components whose performance is governed by contact fatigue strength.

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Authors and Affiliations

  1. Bauman Moscow State Technical University, Moscow, Russia

    S. A. Gerasimov, M. Yu. Semenov, A. E. Smirnov & S. P. Shcherbakov

  2. Blagonravov Institute of Mechanical Engineering, Russian Academy of Sciences (IMASh RAN), Moscow, Russia

    L. I. Kuksenova

Authors
  1. S. A. Gerasimov
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  2. L. I. Kuksenova
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  3. M. Yu. Semenov
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  4. A. E. Smirnov
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  5. S. P. Shcherbakov
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Corresponding author

Correspondence to S. A. Gerasimov.

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Translated from Metallurg, No. 4, pp. 77–81, April, 2016.

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Gerasimov, S.A., Kuksenova, L.I., Semenov, M.Y. et al. Structure and Contact Fatigue Strength of Heat-Resistant Steel VKS-7 Hardened Layers After Ion-Plasma Nitriding. Metallurgist 60, 428–433 (2016). https://doi.org/10.1007/s11015-016-0309-4

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  • DOI: https://doi.org/10.1007/s11015-016-0309-4

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