【摘 要】
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Two kinds of Al Zn Mg based alloys with and without Sc, Zr addition were prepared by ingot metallurgy. The tensile mechanical properties and microstructures o
【出 处】
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Transactions of Nonferrous Metals Society of China
论文部分内容阅读
Two kinds of Al Zn Mg based alloys with and without Sc, Zr addition were prepared by ingot metallurgy. The tensile mechanical properties and microstructures of the studied alloys at different treatment conditions were studied. The results show that addition of minor Sc and Zr can remarkably improve the strength of Al Zn Mg based alloys, but the ductility remains on a higher level. The strength increment is mainly due to fine grain strengthening, substructure strengthening and precipitation strengthening of Al 3(Sc,Zr).
The kinds of Al Zn Mg based alloys with and without Sc, Zr addition were prepared by ingot metallurgy. The tensile mechanical properties and microstructures of the studied alloys at different treatment conditions were studied. The results show that addition of minor Sc and Zr can remarkably improve the strength of Al Zn Mg based alloys, but the ductility remains at a higher level. The strength increment is mainly due to fine grain strengthening, substructure strengthening and precipitation strengthening of Al 3 (Sc, Zr).
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