GS09 熱処理を施したAl-Mg-Zn系合金の自然時効硬化(GS-2 一般セッション2,一般セッション)

概要

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The purpose of this study is to investigate the effect of heat treatment and natural aging on mechanical properties of Al-Mg-Zn series alminium alloy. Zn was added into alminium alloy to improve the mechanical properties. Mechanical properties of alminium alloy were characterized by hardness test and tensile test. Test results showed that tensile strength was increased with increase of weight fraction of Zn. The increment of aging time and heat treatment temperature were also effective to improve the tensile strength. However, when specimen was treated with high temperature and long aging time, the mechanical properties of alminium alloy was decreased. Natural aging was prevented by adding of high fraction of Zn, while insufficient addition of Zn was not effective to prevent natural aging.
2011-07-16