Application status and development prospect of rare earth in electrical steels

Rare earth(RE) plays a unique and irreplaceable important role in iron and steel.The developments in both basic research and application of RE steel are rapid in recent years.Especially, RE electrical steels attracts more and more attention.However, the relevant research is still in the exploration stage, and it is urgent to carry out systematic and in- depth research work. Based on the recent research results about the application of RE in electrical steels, the research status of RE in electrical steels under modern technical conditions and the effect mechanism of RE in electrical steels were summarized. The application of RE in conventional non- oriented electrical steels, grain- oriented electrical steels and Fe- 6. 5 mass% Si high- silicon electrical steels were discussed respectively. A large number of studies show that the addition of RE in electrical steels can significantly improve the magnetic properties, mechanical properties and texture of electrical steels.There is a broad application prospect of RE in the improvement of magnetic and mechanical properties for electrical steels, and the development of RE electrical steels with Chinese resources?? characteristics has an important academic value and a practical significance.