Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on High Temperature Fracture Toughness Characterisitics of Spring Steel by Compressive Residual Stress

압축잔류응력이 스프링강(SUP-9)의 고온파괴인성에 미치는 영향에 관한 연구

  • 정재욱 (경상대학교 기계항공공학부, 해양산업연구소) ;
  • 박원조 (경상대학교 기계항공공학부, 해양산업연구소) ;
  • 이광영 (경상대학교 대학원 정밀기계공학과) ;
  • 허선철 (경상대학교 대학원 정밀기계공학과)
  • Published : 2004.04.28
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Abstract

High temperature fracture toughness characteristics of shot peened spring steel(SUP-9), which is used for automobile suspension system and railroad, was investigated in this paper. Fracture tougness test for room temperature, $100^{\circ}C$ , and $200^{\circ}C$ were evaluated by material test system(MTS). The experimental results show that the fracture toughness was improved by peened and unpeened. The fracture toughness for high temperature were also improved by peened and unpeened.

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