Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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The Spheroidization of Cementite for Cold Heading Quality Steel by Hot Deformation

고온변형에 의한 냉간압조용강의 시멘타이트 구상화 연구

  • Lee, Ung-Youl (Dept. of Materials Science and Engineering, Hong-Ik Uni.) ;
  • Kang, Ku-Hyun (Dept. of Materials Science and Engineering, Hong-Ik Uni.) ;
  • Bang, Myung-Seong (Dept. of Materials Science and Engineering, Hong-Ik Uni.) ;
  • Nam, Seung-Eui (Dept. of Materials Science and Engineering, Hong-Ik Uni.)
  • 이웅렬 (홍익대학교 공과대학 신소재공학과) ;
  • 강구현 (홍익대학교 공과대학 신소재공학과) ;
  • 방명성 (홍익대학교 공과대학 신소재공학과) ;
  • 남승의 (홍익대학교 공과대학 신소재공학과)
  • Received : 2004.01.16
  • Accepted : 2004.07.05
  • Published : 2004.07.30
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Abstract

Conventional spheroidization process of cold heading quality steels requires long heat treatment time, and reduction of the heat treatment time is important for improving productivity in the industry. Recently, hot deformation method has been proposed as a means of increasing spherodization kinetics. In this study, the influences of hot deformation on the spherodization behavior of cold heading quality steels were investigated. Hot deformation at the temperature range of $700^{\circ}C$ significantly enhances the spheroidization kinetics. Hot deformation can lead to a substantial reduction of spherodization process time as low as 1~5 hrs.

Keywords

Acknowledgement

Supported by : 홍익대

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