Research Progress of High Strength Non-oriented Electrical Steels
2014
The research progress of high strength non-oriented electrical steels at home and abroad is summarized according to related patents brought into the public by Baosteel,Nippon Steel Sumitomo Metal corporation and JFE corporation.The characteristics of chemical composition,production technology and properties of products in the patents are analyzed.Each of solution strengthening method,fine-grain strengthening method, precipitation strengthening method or dislocations strengthening method may be used to improve the strength of nonoriented electrical steels.The advantages and disadvantages of the four strengthening methods are stated,too. During the research process,people should firstly make sure the target properties of a high strength non-oriented electrical steel according to its specific uses,and then determine to use a right strengthening method to achieve the balance of mechanical properties,magnetic properties and production performance.
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