열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제31권6호
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  • Pages.300-306
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  • 2018
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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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아공정 Al-Si-Cu-Mg 합금의 액상선 온도 곡선 예측

Prediction of the Liquidus Temperature Curve for Hypoeutectic Al-Si-Cu-Mg Alloy

  • 김근학 (전북대학교 신소재공학부) ;
  • 박동성 (전북대학교 신소재공학부) ;
  • 오승진 (전북대학교 신소재공학부) ;
  • 전준협 (전북대학교 신소재공학부) ;
  • 윤상일 ((주)삼기오토모티브 기술연구소) ;
  • 김기선 ((주)삼기오토모티브 기술연구소) ;
  • 김태영 ((주)삼기오토모티브 기술연구소) ;
  • 이석재 (전북대학교 신소재공학부)
  • Kim, Keunhak (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Park, Dongsung (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Oh, Seung-Jin (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Jeon, Junhyub (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Yoon, Sang-Il (Technical Research Center, Samkee Automotive) ;
  • Kim, Ki-Sun (Technical Research Center, Samkee Automotive) ;
  • Kim, Tae-Young (Technical Research Center, Samkee Automotive) ;
  • Lee, Seok-Jae (Division of Advanced Materials Engineering, Chonbuk National University)
  • 투고 : 2018.10.02
  • 심사 : 2018.11.06
  • 발행 : 2018.11.30
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초록

In the present study we proposed new equations to predict the liquidus temperature curve for hypoeutectic Al-Si-Cu-Mg alloy. A thermodynamic simulation was carried out to calculate the liquidus temperature, eutectic temperature and eutectic Si concentration with different Si, Cu, and Mg contents in hypoeutectic Al-Si alloys. Regressed equations were derived using the thermodynamic simulation results by multiple regression analysis. The proposed equations were compared with the equations reported previously by other researchers and agreed better with the experimental data. The addition of Cu and Mg lowered the eutectic temperature. The eutectic Si concentration was decreased by adding Cu whereas that was increased by adding Mg. Al-Si binary phase diagram was successfully predicted with a consideration of the effect of Cu and Mg addition by using the proposed equations.

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