Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Study on Estimation Fatigue Limit in Induction Surface Hardened S45C Steel

S45C강의 고주파 열처리 표면경화재 피로한도 예측에 관한 연구

  • 이수진 (동아대학교 기계공학과) ;
  • 전형용 (동아대학교 기계공학과) ;
  • 성낙원 (정회원, 동아대학교 기계공학과)
  • Published : 1998.01.01
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Abstract

The effects of small hole defect size and effective case depth(ECD) on the four point bending fatigue limit of induction surface hardened S45C steel were investigated the fatigue limit evaluation of hardened materials is very difficult because of relations of the hardness gradient and residual stress. In this study, it was possible to characterize fatigue limit and fatigue life of induction surface hardened S45C steel in terms of the hole defect size and effective case depth(ECD) and quantitative evaluation of the fatigue limit with hole defects use Murakami's evaluation method and the range of evaluated values is a good accuracy compared with results.

Keywords

References

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