稀土在金属材料中的广泛应用以及含稀土的超导材料的出现,使稀土合金相图的收集、整理与研究变得越来越重要。 根据1977年以前出版的相图集统计,有关稀土元素的相图共计186个,其中二元相图占162个。近十年来,国内外稀土合金相图的研究发展很快,截止到1985年,已有稀土相图846个,其中二元相图占466个。目前作者收集到的二元合金相图有333个。从查阅到的国内外文献中,尚未见到有一个专门的、较完善的稀土合金相图集。因此相图的收 The wide application of rare earth in metal materials and the appearance of rare earth-containing superconducting materials make the collection, sorting and research of rare earth alloy phase diagrams more and more important. According to the phase diagram statistics published before 1977, there are altogether 186 phase diagrams of rare earth elements, of which 162 are binary phase diagrams. In recent ten years, researches on phase diagrams of rare earth alloys at home and abroad have developed rapidly. As of 1985, there have been 846 rare earth phase diagrams, of which 466 are binary phase diagrams. At present, the author has collected 333 binary alloy phases. From the access to the literature at home and abroad, have not seen a special, more complete rare earth alloy phase diagram. Therefore, the phase diagram income