Effect of Nd and Dy on the microstructure and mechanical property of the as extruded Mg–1Zn–0.6Zr alloy
Effect of Nd and Dy on the microstructure and mechanical property of the as extruded Mg–1Zn–0.6Zr alloy
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DOI：
10.1016/j.msea.2014.12.003
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发表时间：
2015-02
期刊：
影响因子：
6.4
通讯作者：
Y. Wan;Shu-nong Jiang;Chuming Liu;B. Wang;Zhiyong Chen
中科院分区：
文献类型：
--
作者：
Y. Wan;Shu-nong Jiang;Chuming Liu;B. Wang;Zhiyong Chen
系统地研究了Mg-1Zn-0.6Zr合金的组织、织构和力学性能。添加Nd或Dy后，合金的晶粒细化和织构弱化效果明显优于不添加稀土的合金。在合金中加入Nd或Dy可显著提高合金的延展性。延展性的增强可能是由于更细的晶粒组织和更弱的织构。稀土元素的加入也提高了合金的屈服强度。强化效果归因于晶粒细化。
Microstructure, texture and mechanical property of Mg–1Zn–0.6Zr alloys were systematically investigated. With the addition of Nd or Dy, obvious grain refinement and texture weakening effect were obtained compared with the alloy free of rare earth element. Notable improvement in ductility was got by adding Nd or Dy in the alloy. The enhanced ductility may be attributed to finer grain structure and weaker texture. Yield strength of the alloy was also enhanced by adding rare earth. The strengthening effect is attributed to the grain refinement.