Effects of isothermal homogenization on microstructure evolution of Mg-7Gd-5Y-1MM-0.5Zr alloy

被引：6

作者：

李蒙 ^{[1
]}

李兴刚 ^{[1
]}

张奎 ^{[1
]}

李永军 ^{[1
]}

马鸣龙 ^{[1
]}

石国梁 ^{[1
]}

袁家伟 ^{[1
]}

刘靖宝 ^{[1
]}

机构：

[1] State Key Laboratory for Fabrication and Processing of Non-Ferrous Metals, General Research Institute for Non-Ferrous Metals

来源：

JournalofRareEarths | 2015年 / 33卷 / 04期

基金：

中国国家自然科学基金;

关键词：

homogenization treatment; magnesium; microstructure evolution; rare earths;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

Optical microscopy(OM), scanning electronic microscopy(SEM) and X-ray diffraction(XRD) were performed to investigate the influence of homogenization on the microstructures of the Mg-7Gd-5Y-1MM(Ce-rich RE)-0.5Zr magnesium alloy. The results indicated that α-Mg, Mg24(Gd Y)5 phase, Mg5(Gd Y) phase and Mg12 MM phase coexisted together in as-cast alloy; the microstructures were largely characterized by α-Mg matrix and gray globular or elliptic ball Mg12 MM phase, in addition to those with cubic block Mg24(Gd Y)5 phase after homogenization; the reasonable homogenization regime was maintained at 530 oC for 32 h.

引用

页码：439 / 444

页数：6

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