铝、镁轻合金中的稀土

Rare Earth Metals in Light Alloys

综述了稀土镁和稀土铝合金的晶体化学、热力学和相图数据，根据其应用前景特别注意了富镁、富铝稀土合金及添加稀土对合金性能的影响，报道了若干稀土镁、稀土铝及含两个不同稀土的镁、铝合金的研究结果。对富镁、富铝的二元和三元合金相的结晶化学及形成规律进行了总结和讨论，并对有确定结构的合金精细设计和可能的应用提出了建议。

A review of crystallochemical, thermodynamic and phase diagram data of Mg RE and Al RE based systems is presented. On the basis also of their possible applications, special attention is given to the Mg rich alloys and to the effects of rare earth additions on their properties. A summary of the experimetnal work carried out by our research group on several binary and ternary alloys is reported: that is Mg RE, Al RE, and Mg RE RE' and Al RE RE' with two different rare earths. A number of regularities observed in the formation and in the crystallochemistry metals of binary and ternary Mg rich or Al rich phases are summarised and discussed. Their application to a fine planning of alloys baving a well defined structure is suggested.