Study on Environment Corrosion Characteristics of Automobile Component Materials

차량용 부품재료의 환경부식 특성 연구

  • 박경동 (부경대학교 기계공학부) ;
  • 신영진 (부경대학교 대학원 기계설계학전공)
  • Published : 2006.09.30

Abstract

The compressive residual stress, which is inducing by shot peening process, has the effect of increasing 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 in corrosion environment. In this study, the influence of shot peening and corrosion condition for corrosion property were investigated on immersed in 3.5% NaCl, 10% HNO3 + 3% HF, 6% $FeCl_3$. The immersion test was performed with two kind of specimen. The immersion periods was performed 150days. Corrosion potential, weight loss were investigated from experimental results. From test results, the effect of shot peening on the corrosion characteristics was evaluated.

Keywords