最近10～15年内,世界各国对添加稀有金属和稀土金属处理铸铁的性能进行了广泛的研究,特别是镧系和钇系元素尤其受到了注意。这决不是偶然的,它可以从石墨球化效果上得到说明。在这种情况下所得到的强韧铸铁性能并不比镁铸铁的性能差。稀土金属,如铈及其合金用于强韧铸铁生产的变质处理,一般来说,与广泛使用的镁变质处理相比有很多优点。这些优点是在添加变质剂时,由于高温效 In the recent 10 to 15 years, various countries in the world have done extensive research on the properties of cast iron with rare metals and rare earth metals. In particular, lanthanide and yttrium series elements have drawn special attention. This is by no means accidental, it can explain the effect of graphite ball. In this case the resulting tough cast iron performance is not worse than the performance of magnesium cast iron. Rare earth metals, such as cerium and its alloys, are used in the metamorphic treatment of tough cast iron production and generally have many advantages over the widely used magnesium modification. These advantages are due to the high temperature effect when adding the modifier