Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

An Effect of Shot Peening on Corrosion Fatigue Crack Growth of Suspension Material

현가장치재의 부식피로균열진전에 미치는 쇼트피닝의 영향

  • Park, Keyung-Dong (Department of Mechanical Engineering, Pukyoung National University) ;
  • An, Jae-Pil (Department of Mechanical Engineering, Pukyoung National University)
  • 박경동 (부경대학교 기계공학부) ;
  • 안재필 (부경대학교 기계공학부)
  • Published : 2006.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

The compressive residual stress, which is induced 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, the effect of shot peening in corrosion environment was not known. In this study, investigated is the effect of shot peening on corrosion fatigue crack growth of SAE 5155 steel immersed in 6% $FeCl_3$ solution and corrosion characteristics with considering fracture mechanics. The results of the experimental study corrosion fatigue characteristics of SAE 5155 are as follows; the fatigue crack growth rate of the shot peening material was lower than that of the non-peening material. And fatigue life shows more improvement in the shot peening material than in non-peening material. This is due to the compressive residual stress of surface increases resistance of corrosion fatigue crack propagation. It is assumed that the shot peening process improve corrosive resistance and mechanical property.

Keywords

References

  1. K. D. Park, J. H. Kim, H. K. Yoon and W. J. Park, 'A Study on Fatigue Crack Propagation Behavior of Pressure Vessel Steel SA516/70 at High Temperature,' KCORE 15-2-456, pp.105- 110, 2001
  2. K. D. Park and C. K. Jung, 'The Effect of Compressive Residual Stresses on Fatigue Strength in DIN50CrV4-SAE9254 Steel,' KCORE, Vol.15, No.3, pp.94-100, 2001
  3. W. F. Brown and J. E. Strawley, 'Plane Crack Toughness Testing of High Strength Metallic Materials,' ASTM STP 410, 1996
  4. D. A. Lopez, W. H. Schreinerb, S. R. de Sancheza and S. N. Simisona, 'The Influence of Carbon Steel Microstructure on Corrosion Layers An XPS and SEM Characteristics,' Applied Surface Science, Vol.207, pp.69-85, 2003 https://doi.org/10.1016/S0169-4332(02)01218-7
  5. K. D. Park, 'A Study on the Effect of Compressive Residual Stress on Fatigue Crack Propagation Behavior of the Shot-peened Spring Steel,' Transactions of KSAE, Vol.11, No.4, pp.117-124, 2003
  6. K. D. Park and C. G. Jung, 'The Effect of Compressive Residual Stresses of Two-stage Shot-peening for Fatigue Life of Vehicle Spring Steel,' Transactions of KSAE, Vol.11, No.1, pp.185-192, 2003
  7. ASTM : E647-93, Standard Test Method for Measurement of Fatigue Crack Growth Rates, 1993
  8. K. Makhlouf, H. Sidhom, I. Triguia and C. Braham, 'Corrosion Fatigue Crack Propagation of a Duplex Stainless Steel X6Cr Ni Mo Cu 25-6 in Air and in Artificial Sea Water,' International Journal of Fatigue, Vol.25, pp.167-179, 2003 https://doi.org/10.1016/S0142-1123(02)00046-4
  9. Y. B. Lee, H. K. Kim and J. S. Jung, Fundamentals of Fatigue Analysis, Chungmungak, pp.99-125, 1999
  10. K. D. Park and J. P. An, 'The Effect of Compressive Residual Stress of Spring Steel for Vehicle on Corrosion,' Transactions of KSAE, Vol.13, No.1, pp.159-165, 2005
  11. D. A. Jones, Principles and Prevention of Corrosion, 2nd Edition, Prentice Hall, New Jersey, pp.31-34, 1995