【摘要】 本文借助X射线衍射法与显微结构分析法测定了425℃与250℃时La在Al-Mg合金α相中的固溶度。发现随镁含量的增加镧的固溶度稍有增加,但都低于0.29wt％。此外,考察了Y、La、Ce、Nd和混合稀土金属,它们在α相(7％Mg)中的固溶度几无差别。更多还原

【Abstract】 The solid solubility of La in the α phase of Al-Mg alloy has been inve-stigated by means of X-ray and metallographic analysis. Increasing Mgcontent makes the solid solubility somewhat higher, but in no casehigher than 0.20wt% La. In addition, the solid solubilities of Y、La、Ce、Nd and mischmetal in the α phase (7wt% Mg) have been examined.Little difference in solid solubility has been observed, but with increa-sing atomic number of Ln, the solubilities seem to be slightly lower.更多还原