Comparisons of{100}texture improvement and formability in hot-rolled non-oriented electrical steel by austenite-ferrite phase transformation and shear deformation  

作　　者：Chi-hao Yu Hong-jiang Pan Yan-ping Zhao De-ting Tang Hai-jun Wang 

机构地区：[1]Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming,650093,Yunnan,China [2]School of Electronics and Information Engineering,Anshun University,Anshun,561000,Guizhou,China [3]School of Metallurgical Engineering,Anhui University of Technology,Ma’anshan,243032,Anhui,China

出　　处：《Journal of Iron and Steel Research International》2025年第1期171-185,共15页钢铁研究学报(英文版)

基　　金：supports from the National Natural Science Foundation of China(NSFC)(Nos.51901091 and 52374316);the Yunnan Science and Technology Program(Nos.202401AT070403 and 202305AF150014).

摘　　要：Over the years,the high magnetic induction of industrial Mn-added electrical steel is assumed to be the enhancement of{100}texture derived from its austenite-ferrite phase transformation during hot rolling(phase transformation(PT)method).However,it is still undetermined without straightforward experimental evidence.The reason for{100}texture improvement of Mn-added electrical steel is experimentally confirmed due to the recrystallization induced by the austenite-ferrite phase transformation during hot rolling.Moreover,a more promising methodology to further improve{100}texture and formability of hot-rolled electrical steel is promoted by the control of hot rolling deformation condition(shear deformation(SD)method).The results show that the nucleation mechanisms of{100}oriented recrystallized grains are different in the samples by SD and PT methods,which are in-depth shear deformation and austenite-ferrite phase transformation,respectively.In this case,coarse{100}oriented recrystallized grains and low residual stress are obtained in the sample by SD method,which is responsible for its superior{100}texture and formability.In contrast,the sample by PT method forms fine recrystallized grains with random orientations and accumulates severe residual stress.

关 键 词：Non-oriented electrical steel {100}texture FORMABILITY Austenite-ferrite phase transformation Shear deformation 

分 类 号：TG142[一般工业技术—材料科学与工程]