Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effects of Mg and Cu Amounts on the Casting Characteristics and Tensile Property of Al-Zn-Mg-Cu Alloys

Al-Zn-Mg-Cu 합금의 주조성 및 인장특성에 미치는 Mg 및 Cu 첨가량의 영향

  • Kim, Ki-Tae (Foundry Technology Center, Korea Institute of Industrial Technology) ;
  • Lim, Young-Suk (Foundry Technology Center, Korea Institute of Industrial Technology) ;
  • Kim, Jeong-Min (Dept. of Applied Materials Eng., Hanbat National University)
  • 김기태 (한국생산기술연구원 주조기술센터) ;
  • 임영석 (한국생산기술연구원 주조기술센터) ;
  • 김정민 (한밭대학교 신소재공학부)
  • Received : 2012.01.13
  • Accepted : 2012.02.22
  • Published : 2012.02.29
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Abstract

The effects of Mg and Cu amounts on the casting characteristics and tensile property of Al-Zn-Mg-Cu alloys were investigated for the development of high strength aluminium alloys for gravity mold casting. Increase of copper amounts in Al-6%Zn-3%Mgy% Cu alloys resulted in reduction of the fluidity of these alloys and had little effects on the tensile property of these alloys. Increase of magnesium amounts from 1.0wt% to 3.3wt% in Al-6%Zn-x%Mg-0.5%Cu alloys resulted in reduction of the elongation of these alloys from 12% to 3% and increase of the tensile strength of these alloys from 340MPa to 450MPa, but had little effects on the fluidity of these alloys.

Keywords

References

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