【摘 要】
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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 transmiss
【机 构】
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School of Materials Science and Engineering
论文部分内容阅读
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.
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