加入少量稀土元素以改进钢铁及非铁合金的性能的研究工作已经取得成效并应用于生产。为了进一步探讨轻稀土、重稀土或各单一稀土元素在各类合金中的作用,近年来提出了在各类合金中测定轻稀土、重稀土或各单一稀土元素的要求。本工作的目的是研 Research into adding small amounts of rare earth elements to improve the properties of steel and non-ferrous alloys has yielded results and is applied to production. In order to further explore the role of light rare earth, heavy rare earth or single rare earth elements in various alloys, in recent years, the determination of light rare earths, heavy rare earths or rare earth elements in all kinds of alloys has been proposed. The purpose of this work is to research