Investigation of technologies for manufacturing dual-phase magnetic steels for elements of electric machines: A review

•A review article is presented on known methods for producing dual-phase magnetic steels.•The main advantages and disadvantages of existing technologies are considered, the existing groundwork and future prospects are described.•Despite the small number of published works on this subject, all of them indicate great prospects for the use of dual-phase magnetic steels in electric machines. Electric machines have become widespread in various fields of industry. However, the possibilities of increasing the efficiency and improving the output characteristics of modern electric machines are approaching their technical saturation. The fundamental solution to this problem is the creation of new materials and design solutions for electric machines, in particular, the use of soft magnetic steels for magnetic cores, in which it is possible to obtain areas with different magnetic properties - dual-phase magnetic steels, thereby providing the necessary direction of the magnetic flux. This article presents known methods for manufacturing dual-phase magnetic steels, discusses their advantages and disadvantages, existing groundwork and future prospects.