열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제24권3호
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  • Pages.149-155
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  • 2011
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  • 1225-1070(pISSN)
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  • 2508-4046(eISSN)
한국열처리공학회 (The Korean Society for Heat Treatment)
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펄스 자기장을 이용한 잔류 응력 완화 연구

A Study on the Stress Relief by Pulse Magnetic Treatment

  • 오주숙 (부산대학교 재료공학과 재료연구소) ;
  • 양원존 (한국기계연구원부설 재료연구소 첨단재료연구본부) ;
  • 이종훈 (한국기계연구원부설 재료연구소 첨단재료연구본부) ;
  • 박용호 (부산대학교 재료공학과 재료연구소)
  • Oh, Ju-Suk (Material Science and Engineering, Pusan National Univ.) ;
  • Yang, Won-Jon (Korea Institute of Materials Science (KIMS)) ;
  • Lee, Jong-Hoon (Korea Institute of Materials Science (KIMS)) ;
  • Park, Yong-Ho (Material Science and Engineering, Pusan National Univ.)
  • 투고 : 2011.02.07
  • 심사 : 2011.04.20
  • 발행 : 2011.05.30
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초록

Residual stress relief by pulse magnetic treatment is attractive because the process is carried out at room temperature and magnetic fields that are easy to produce and control can be used. This study shows that strong pulse magnetic treatment can lead to stress relaxation of structural steels instead of a conventional heat treatment process. And it makes a comparative study about pulse magnetic treatment and tempering by using Larson-Miller equation. When the specimen was subjected to a pulse magnetic treatment process the residual stress in the specimen was reduced by about 13.8%. It could be compared with tempering at $200^{\circ}C$ for 2hours by using thermal effect of Larson-Miller equation. As a result, it is considered that the pulsed magnetic treatment have an effect of the stress relation by tempering at $200^{\circ}C$ for 2 hours.

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