Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Age Hardening and Mechanical Property of Extruded Al-Zn-Mg-(Cu) Al Alloys with Sc addition

Sc 첨가된 Al-Zn-Mg-(Cu)계 알루미늄 합금 압출재의 시효 경화 거동과 기계적 성질

  • 심성용 (경상대학교 아이큐브, 항공기부품기술연구소) ;
  • 임수근 (경상대학교 아이큐브, 항공기부품기술연구소)
  • Received : 2007.08.16
  • Accepted : 2007.09.11
  • Published : 2007.09.30
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Abstract

The age hardening behavior and mechanical properties of an extruded Al-Zn-Mg-(Cu)-0.1 wt.%Sc alloy were investigated with the Sc addition and ageing temperature. The results showed that the $Al_3Sc$ compounds were formed by Sc addition and distributed preferentially along the extrusion direction. The age hardening of Al-Zn-Mg-Cu-0.1 wt.%Sc alloy which was treated by T6 process was more significant than that of Al-Zn-Mg-0.1 wt.%Sc alloy. The tensile property of Al-Zn-Mg-Cu+0.1 wt.%Sc alloy was also higher than that of Al-Zn-Mg-0.1 wt.%Sc alloy, which is 691 MPa and 584 MPa in strength and 9% and 11% in elongation, respectively.

Keywords

References

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