Effect of aging on microstructure of Mg-Zn-Er alloys
来源期刊：JOURNAL OF RARE EARTHS2009年第6期
论文作者：DU Wenbo LI Shubo LI Jianhui WANG Zhaohui
Key words：Mg-Zn-Er alloys; aging behavior; microstructure; rare earths;
Abstract: The effect of aging on microstructure of Mg-Zn-Er alloys at 473 K was investigated using hardness measurement, scanning elec-tron microscopy (SEM) and transmission electron microscopy (TEM). The results indicated that both Mg3.8Zn1.5Er and Mg5Zn2.0Er alloys exhibited visible age-hardening effect, especially the latter alloy. Microstructure analysis showed that, after being aged, lots of fine MgZn_2 phases with hexagonal structure were found in the α-Mg matrix. Comparing with Mg3.8Zn1.5Er alloy, the accelerated hardening response of Mg5Zn2.0Er should be contributed to the increase in the content of Zn and Er elements.
DU Wenbo1，LI Shubo1，LI Jianhui1，WANG Zhaohui1
(1.School of Materials Science and Engineering,University of Technology Beijing,Beijing 100124,China)
Abstract:The effect of aging on microstructure of Mg-Zn-Er alloys at 473 K was investigated using hardness measurement, scanning elec-tron microscopy (SEM) and transmission electron microscopy (TEM). The results indicated that both Mg3.8Zn1.5Er and Mg5Zn2.0Er alloys exhibited visible age-hardening effect, especially the latter alloy. Microstructure analysis showed that, after being aged, lots of fine MgZn_2 phases with hexagonal structure were found in the α-Mg matrix. Comparing with Mg3.8Zn1.5Er alloy, the accelerated hardening response of Mg5Zn2.0Er should be contributed to the increase in the content of Zn and Er elements.
Key words:Mg-Zn-Er alloys; aging behavior; microstructure; rare earths;
【全文内容正在添加中】
