Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1638702 | Transactions of Nonferrous Metals Society of China | 2010 | 5 Pages |
Abstract
The solidification microstructures and hardness of Mg-2%Zn (mass fraction) based alloys with addition of 0.4%Ce, 0.4%Gd, 0.4%Y or 0.4%Nd (mass fraction) were investigated, and the effects of the rare earth elements on the microstructures and mechanical properties of these alloys extruded at 310 °C were also compared. The results indicate that the trace rare earth Ce, Gd, Y or Nd in the Mg-2%Zn alloy has obviously different grain refinement effects on its solidification microstructures, and the as-cast and hot-extruded alloy with 0.4%Ce has the smallest average grain size and the highest strength. However, the extruded alloys containing 0.4%Nd or 0.4%Y with the elongation of 26.6% and 30%, respectively, show higher plasticity in spite of lower strength as compared with the alloy containing 0.4%Ce.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qi-chi LE, Zhi-qiang ZHANG, Zhi-wen SHAO, Jian-zhong CUI, Yi XIE,