Effect of Sm on the microstructure, mechanical properties and creep behavior of Mg–0.5Zn–0.4Zr based alloys
作者： Jiang Zheng , Qudong Wang , Zhengli Jin , Tao Peng
DOI: 10.1016/J.MSEA.2009.10.067
关键词: Magnesium alloy 、 Grain boundary 、 Metallurgy 、 Creep 、 Materials science 、 Microstructure 、 Samarium 、 Eutectic system 、 Alloy 、 Slip (materials science)
摘要: The present study aims at investigating the effect of additions (0.4, 0.5, 1.5, 3, and 5wt.%) of samarium on the microstructure, mechanical properties of Mg–0.5 Zn–0.4 Zr alloy. Experimental results show that a small amount of samarium addition can bring about precipitation of eutectic Mg41Sm5 phases at the grain boundaries and refine the as-cast grains. When samarium content increasing to 3%, a great number of fine plate-shaped precipitates form in the regions close to grain boundaries, and could effectively hinder …
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