A comparative study of Mg-Gd-Y-Zr alloy cast by metal mould and sand mould

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在金属模子和沙模子之间的微观结构和机械性质的差别扔了 Mg-10Gd-3Y-Zr 合金在当演员组状况下面并且在答案热处理以后被调查。在当演员组标本,微观结构 -Mg 固体答案和 -Mg+ Mg24 的最容易溶解的化合物类似、镇静(Gd, Y ) 5;而使用金属模子和沙模子的谷物尺寸是 27 m 和 71 m , respectively.The 金属模子演员组合金的最容易溶解的化合物完全在为 8 h 在 500 点对待的答案以后被溶解,然而,完成在沙模子状况下面的绝对溶解需要更高的温度( 525 )
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