前言我国稀土在有色金属及其合金中的应用,是从六十年代初开始的,与国外相比起步较晚,但发展的速度还是很快的,特别是进入八十年代,随着稀土生产工艺的改进,成本降低,品种增多,而稀土在钢铁中应用的深入研究,积累了大量的丰富经验,为稀土在有色金属及合金中的应用创造了良好的条件。稀土在有色金属与合金中,无论是在代替钠盐作为变质剂方面,还是作为主要合金元素 Preface China’s rare earth in non-ferrous metals and their alloys, from the early sixties, started relatively late compared with foreign countries, but the pace of development is still very fast, especially into the eighties, with the rare earth production The improvement of technology, the reduction of cost and the increase of variety of products have accumulated a great deal of rich experience in the application of rare earths in steel, which has created good conditions for the application of rare earths in nonferrous metals and alloys. Rare earth in non-ferrous metals and alloys, both in place of sodium salt as a modifier, or as a major alloying element