Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effects of Zn Amounts on the Castability and Tensile Properties of Al-Zn-Mg-Cu Alloys for Die Casting

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

  • Kim, Ki-Tae (Foundry Technology Center, Korea Institute of Industrial Technology) ;
  • Yang, Jae-Hak (Foundry Technology Center, Korea Institute of Industrial Technology) ;
  • Lim, Young-Suk (Foundry Technology Center, Korea Institute of Industrial Technology)
  • 김기태 (한국생산기술연구원 주조기술센터) ;
  • 양재학 (한국생산기술연구원 주조기술센터) ;
  • 임영석 (한국생산기술연구원 주조기술센터)
  • Received : 2010.05.22
  • Accepted : 2010.08.03
  • Published : 2010.08.30
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Abstract

The effects of Zn amounts on the castability and tensile properties of Al-Zn-Mg-Cu alloys were investigated for development of high strength die casting aluminium alloys. Al-Zn-Mg-Cu alloys with 3.5% Zn showed high cast cracking tendency and poor mold filling behaviour. Al-Zn-Mg-Cu alloys with 5wt% Zn and 7wt% Zn had the tensile strengths of 300~400MPa and the elongations of 2~18%. The effect of Zn on the tensile strength of Al-Zn-Mg-Cu alloys was insignificant, but Al-Zn-Mg-Cu alloy with high Zn amount had lower elongation.

Keywords

References

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