Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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An Analysis Finite Element for Elasto-Plastic Stresses Considerating Phase Transformation at the Quenching Process(II) -From Austenite to Martensite-

퀜칭과정에서 상변태를 고려한 탄소성 열응력의 유한요소 해석(II) -오오스테나이트에서 마르텐사이트로의 변태-

  • Kim, O.S. (Dept. of Mechanical Engineering, Yosu National Fisheries University) ;
  • Song, G.H. (Central Research Center, Daewoo Motor Co., LTD.) ;
  • Koo, B.K. (Dept. of Die and Mould Design, Seoul National Polytechnic University)
  • 김옥삼 (여수수산대학교 기계공학과) ;
  • 송관흠 (대우자동차(주) 중앙연구소) ;
  • 구본권 (서울산업대학교 금형설계과)
  • Published : 1995.03.31
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Abstract

In this a set of constitutive equation relevant to the analysis of thermo-elasto-plastic materials with phase transformation during quenching process was presented on the basis of continuum thermo-dynamic. In calculating the transient thermal stresses, temperature between coolant and specimen(SM45C) surface was determined from the heat transfer coefficient. A calculation was made for specimen with 40mm in diameter quenched in coolant from $820^{\circ}C$ and the results are as follow. Stresses at starting point of transformation always show the maximum tensile value. Reverse of stresses takes place after completion of transformation of inner part at specimen.

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