Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Effects of Alloying Elements and Nitrocarburizing on Rolling Contact Fatigue Life

회전접촉피로수명에 미치는 합금원소 및 침질탄화처리의 영향

  • Jin, Jai Koan (Department of Metallurgical Engineering, Chonbuk National University) ;
  • Kim, Dong Keon (Department of Metallurgical Engineering, Chonbuk National University)
  • 진재관 (전북대학교 공과대학 금속공학과) ;
  • 김동건 (전북대학교 공과대학 금속공학과)
  • Published : 1994.12.31
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Abstract

This study has been carried out to evaluate effects of alloying elements and nitrocarburizing on rolling contact fatigue life. Manganese has a significant influence on the distribution of retained carbides and microstructural changes after rolling contact fatigue test. The effect of the manganese addition stabilized fine retained carbide particles during rolling contact fatigue life test, and so increased fatigue life markedly. High carbon chromium bearing steel with different matrixes were nitrocarbunzed by austenitic nitrocarburizing process at $850^{\circ}C$ for 4hrs. Rolling contact fatigue life of the nitrocarburized specimen was increased 2 times than full hardening treated.

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