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摘要
The hot-tearing susceptibility of Mg-6Al-0.5Mn alloy decreased with the increasing Sr content (<= 0.2 wt%). The related mechanism is described as follows: Sr refines the grain and reduces the tendency of divorced eutectic; Sr decreases the eutectic temperature and results in higher intergranular strength. Both of the above reasons could improve the filling capacity of the melt, resulting in the best hot-tearing-resistant property of the alloy.
- 出版日期2012-2
- 单位清华大学
