Use of Glow Discharge Nitriding for Raising the Surface Hardness of Bearing Parts from Precision Nickel Alloys

M. Yu. Semenov; Jian Ding Kai; A. E. Smirnov; S. Yu. Shevchenko; V. A. Aleksandrov

doi:10.1007/s11041-019-00396-0

Use of Glow Discharge Nitriding for Raising the Surface Hardness of Bearing Parts from Precision Nickel Alloys

Authors: Semenov M.Y.¹, Kai J.D.¹, Smirnov A.E.¹, Shevchenko S.Y.¹, Aleksandrov V.A.²
Affiliations:
1. N. É. Bauman Moscow State Technical University
2. Moscow Automobile and Road Construction State Technical University (MADI)
Issue: Vol 61, No 3-4 (2019)
Pages: 173-177
Section: Surface Engineering
URL: https://journals.rcsi.science/0026-0673/article/view/236581
DOI: https://doi.org/10.1007/s11041-019-00396-0
ID: 236581

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Abstract

Precision nickel alloy 40KhNYu-VI used for fabricating nonmagnetic precision bearings is studied after nitriding in glow discharge in an experimental facility at a high temperature (730 and 900°C) and in commercial equipment at 540°C. The effect of the temperature and duration of nitriding and of the mode of heat treatment on the structure and hardness of the surface layer obtained is determined.