Abstract
Electrical steels are the most-often used materials among all soft magnetic materials. Electrical steel is classified into two types: non-oriented (NO) electrical steel and grain-oriented (GO) electrical steel. NO steel is widely used in motors and generators, in which the magnetization direction is rotated in the sheet plane. GO is mainly used as a core material of transformers, in which the magnetization direction is unidirectional. The metallurgical aspects of electrical steels are explained in this paper.
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