研究了AlP对Mg2Si相及其基体组织的细化效果和机理.结果表明:AlP能够作为Mg2Si初生相的异质核心,促使其由汉字形变为颗粒状,并且促进τ(Mg32(Al,Zn)49)相的析出,而抑制ψ(Al2Mg5Zn2)相的析出,同时基体组织也得到显著细化,不仅改善了合金的室温性能,而且也改善了高温(150℃)性能.
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