Study on Relationship between Microstructures and Properties of Thin Steel Strips with Content of 6.5％Si by Rolling Method
Taking the 6.5％Si thin steel strips produced by warm rolling process as the subject investigated,the microstructures in warm rolled steel sheets with adding elements of Nb and B was adjusted and controlled at different annealing temperatures.The study results showed that their grain sizes after annealing these investigated warm rolled steel sheets at 750 ℃ were about 22.2 μm,and the samples taken by these steel sheets could be rolled into a 0.10 mm thin strip with the width of 100 mm and good surface quality by cold rolling.After annealing the thin strip at 1 200 ℃ for 1 h,the magnetic induction B8 was 1.29 T,and the iron loss P10/400 was 5.46 W/kg,while its comprehensive magnetic properties were better than those of JNEX products with the same specifications.
万方数据
维普
