Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Properties and Casting Characteristics of Al-Zn-Fe-Si Alloys

Al-Zn-Fe-Si 합금의 물성 및 주조특성

  • Yun, Ho-Seob (Dept. of Advanced Materials Engineering, Hanbat National University) ;
  • Kim, Jeong-Min (Dept. of Advanced Materials Engineering, Hanbat National University) ;
  • Park, Joon-Sik (Dept. of Advanced Materials Engineering, Hanbat National University) ;
  • Kim, Ki-Tae (Incheon R&D Center, Korea Institute of Industrial Technology)
  • 윤호섭 (한밭대학교 신소재공학과) ;
  • 김정민 (한밭대학교 신소재공학과) ;
  • 박준식 (한밭대학교 신소재공학과) ;
  • 김기태 (한국생산기술연구원 인천연구센터)
  • Received : 2012.12.04
  • Accepted : 2013.02.05
  • Published : 2013.02.28
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Abstract

Although aluminum-silicon based commercial casting alloys have been used in applications that demand high electrical or thermal conductivity, new aluminum casting alloys that possess higher conductivities are currently required for advanced applications. Therefore, there is much research into the development of new high conductivity aluminum casting alloys that contain lower amounts of or no silicon. In this research, the properties and casting characteristics of Al-Zn-Fe-Si alloys with various Fe and Si contents were investigated. Two types of AlFeSi phases were formed depending on the Fe and Si contents. As the silicon content increased, the tensile strength of the Al-Zn-Fe-Si alloy increased slightly, while the electrical conductivity decreased slightly. It was also observed that both the fluidity and hot cracking susceptibility of the investigated alloys were closely related to the formation of the AlFeSi phases.

Keywords

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