Fatigue characteristics of SCM 22 Steel by Shot Peening

쇼트피닝한 SCM22강의 피로 특성

  • 신용승 (서울산업대학교 기계공학과)
  • Published : 1998.12.01

Abstract

The influence of shot peening on the fatigue strength of SCM22 steel is investigated in this work. The shot peening process is applied to the heat treated specimens. Then, basic material properties and residual stresses are evaluated for specimens. Rotate bending and torsional fatigue tests are accomplished to investigate the effects of shot peening on the fatigue strength. experimental results show that the fatigue life was increased tremendously by shot peening. The compressive residual stress, which is induced by shot peening process, seems to be an important factor of increasing the fatigue strength.

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References

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