Investigations of the ternary phase diagrams of magnesium with two rare-earth metals from different groups (the yttrium group or the cerium group) are described with the main attention being paid to regions near the Mg corner. In these parts of the ternary phase diagrams, it was found that the magnesium solid solution was in equilibrium with only two binary compounds of magnesium with both rare-earth metals, and in addition, a significant solubility of each rare-earth metal in the most magnesium rich compound of the second rare-earth metal. In ternary Mg-systems involving rare-earth metals of different groups, trends in changes in the constitution in the Mg-region of the diagram as a function of the atomic number of the rare-earth additions were noted. These trends were established by comparing ternary phase diagrams of Mg-containing systems comprising yttrium and a rare-earth metal from the cerium group, and systems comprising samarium (from the cerium group) and a rare-earth metal from the yttrium group.

中文翻译：

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两种不同族（钇族或铈族）稀土金属镁合金三元相图的组成规律

描述了镁与来自不同族群（钇族或铈族）的两种稀土金属的三元相图的研究，主要关注镁角附近的区域。在三元相图中的这些部分中，发现镁固溶体仅与镁与两种稀土金属的两种二元化合物处于平衡状态，此外，每种稀土金属在大多数稀土金属中具有显着的溶解度。第二种稀土金属的富镁化合物。在涉及不同族的稀土金属的三元 Mg 系统中，注意到作为稀土添加物原子序数函数的图表 Mg 区域的组成变化趋势。