• Title/Summary/Keyword: Al-Mg합금

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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)

  • Shim, Sung Yong;Lim, Su Gun
    • Journal of the Korean Society for Heat Treatment
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    • v.20 no.5
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    • pp.243-249
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    • 2007

  • 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.

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