Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Evaluation of Microstructures and Mechanical Property of Variously Heat Treated 0.85% Carbon Steel by Magnetic Method

자기적 방법에 의한 0.85% 탄소강의 열처리에 따른 미세조직 및 기계적 성질 평가

  • Byeon, Jai-Won (Research Institute of Engineering and Technology, Korea University) ;
  • Kwun, S.I. (Division of Materials Science and Engineering, Korea University)
  • 변재원 (고려대학교 공학기술연구소) ;
  • 권숙인 (고려대학교 재료금속공학부)
  • Published : 2003.02.01
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Abstract

Microstructures and mechanical properties of variously heat treated 0.85% carbon steel(eutectoid steel) were evaluated by magnetic property measurements. Microstructural analysis (pearlite interstellar spacing), measurement of mechanical properties(Rockwell hardness, yield stress, fracture stress) and magnetic properties(coercivity, remanence, hysteresis loss, saturation magnetization) were performed to clarify mutual relationships among these parameters. Water quenched specimens with martensite structure showed much higher coercivity and remanence than air cooled or furnace cooled specimens with pearlite structure. The linear dependence of coercivity and remanence on pearlite interlamellar spacing as well as on Rockwell hardness, yield stress and fracture stress was observed in the pearlitic steel. Hysteresis loss and saturation magnetization showed no distinct trend with pearlite interlamellar spacing.

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References

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Cited by

  1. Magnetic Evaluation of Microstructures and Strength of Eutectoid Steel vol.44, pp.10, 2003, https://doi.org/10.2320/matertrans.44.2184