Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Effect of Compress Residual Stress on Corrosion of the Shot Peened Spring Steel

쇼트피닝 가공 스프링강의 압축잔류응력이 부식에 미치는 영향

  • Park, Sung-Mo (Department of Computer Engineering, Pukyong National University) ;
  • Moon, Kwang-Seok (Department of Electronics Engineering, Pukyong National University) ;
  • Park, Keyong-Dong (Department of Mechanical Engineering, Pukyong National University)
  • 박성모 (부경대학교 대학원 컴퓨터공학과) ;
  • 문광석 (부경대학교 전자공학부) ;
  • 박경동 (부경대학교 기계공학부)
  • Published : 2008.03.31
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Abstract

The compressive residual stress due to shot peening process can increase the intrinsic fatigue strength of surface and therefore would be beneficial in reducing the probability of fatigue damage. However, it was not known that the effect of shot peening on corrosion environment. In this study, the influence of shot peening and corrosion condition on corrosion property was investigated on immersed in 3.5% NaCl, 10% $HNO_3$+3% HF, 6% $FeCl_3$. The immersion test was performed with two kind of specimens. The immersion test periods were carried out on performed 360days. Corrosion potential and weight loss were investigated from experimental results. From these results, the effect of shot peening on the corrosion characteristics was evaluated.

Keywords

References

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