Competition behavior of the strengthening effects in as-extruded AZ91 matrix: Influence of pre-existed Mg17Al12 phase

作者: Cui-ju Wang , Kun-kun Deng , Kai-bo Nie , Shuan-jun Shang , Wei Liang

DOI: 10.1016/J.MSEA.2016.01.023

关键词:

摘要: Abstract The AZ91 alloy containing (“AC”) and without (“AS”) Mg 17 Al 12 phase were both subject to hot extrusion at 693 K with the ratio of 16:1. Results showed that pre-existed in “AC” led finer grain size lower intensity basal plane texture as compared “AS” alloy. Almost same YS between indicated boundary precipitation strengthening was balanced by solid solution Nevertheless, elongated along direction reduced its ultimate tensile strength Existence SiCp a dispersive uniform distribution phase, which gave full play on composite. Unlike alloy, just composite contributed higher UTS

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