Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
권호 표지

Real-time Observation and Analysis of Solidification Sequence of Fe-Rich Al-Si-Cu Casting Alloy by Synchrotron X-ray Radiography

가속 방사광을 활용한 Fe함유 Al-Si-Cu 주조용 합금의 응고과정 실시간 관찰 및 분석

  • Kim, Bong-Hwan (Liquid processing & casting technology R/D division, Korea Institute of Industrial Technology) ;
  • Lee, Sang-Hwan (Liquid processing & casting technology R/D division, Korea Institute of Industrial Technology) ;
  • Yasuda, Hideyuki (Dept. of Adaptive Machine Systems, Osaka University) ;
  • Lee, Sang-Mok (Liquid processing & casting technology R/D division, Korea Institute of Industrial Technology)
  • 김봉환 (한국생산기술연구원 주조공정연구부) ;
  • 이상환 (한국생산기술연구원 주조공정연구부) ;
  • 야스다 히데유키 (대판대학 지능.기능창성공학) ;
  • 이상목 (한국생산기술연구원 주조공정연구부)
  • Received : 2010.05.11
  • Accepted : 2010.06.26
  • Published : 2010.06.30
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Abstract

The solidification sequence and formation of intermetallic phase of Fe-rich Al-Si-Cu alloy were investigated by using real-time imaging of synchrotron X-ray radiation. Effects of cooling rate during uni-directional solidification on the resultant solidification behavior was also studied in a specially constructed vacuum chamber in the SPring-8 facility. The series of radiographic images were complementarily analyzed with conventional analysis of OM and SEM/EDX for phase identification. Detailed solidification sequence and formation mechanisms of various phases were discussed based on real-time image analysis. The growth rates of $\alpha$-AlFeMnSi and ${\beta}-Al_5FeSi$ were measured in order to understand the growth behavior of each phase. It is suggested that real-time imaging technique can be a powerful tool for the precise understanding of solidification behavior of various industrial materials.

Keywords

References

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