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：
Journal of Rare Earths | 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：
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
收藏
页码：439 / 444
页数：6
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