Study on Effect of Mechanical Machining and Heat Treatment on Surface Residual Stress of TP316L Stainless Steel

TP 316L 스테인리스강의 기계가공 및 열처리에 의한 표면잔류응력 특성 측정 연구

  • 이경수 (한전 전력연구원 원자력발전연구소) ;
  • 이정근 (한전 전력연구원 원자력발전연구소) ;
  • 송기오 (한전 전력연구원 원자력발전연구소) ;
  • 박재학 (충북대학교 공과대학 안전공학과)
  • Received : 2009.12.17
  • Accepted : 2011.02.14
  • Published : 2011.05.01


We study the effect of mechanical machining and heat treatment on the surface residual stress of TP 316L stainless steel. Electrical discharge machining (EDM), milling and grinding were applied to TP 316L plate specimens. The residual stress and hardness were measured and the effect of heat treatment on the surface residual stress was examined. The residual stress was measured by the X-ray diffraction method, which showed that the surface residual stress was related only to the stress magnitude and was independent of the compressive or tensile component. The surface residual stress was greatly decreased by the heat treatment, but it was not removed completely.


Residual Stress;X-ray Diffraction Method;Mechanical Machining;Heat Treatment


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