Enhancing the formability of FeSi6.5 steel by the anodic polarization

作     者：Dong Zhao Feng Ye Binbin Liu Haoyang Du Yaakov B.Unigovski Emmanuel M.Gutman Roni Shneck Dong Zhao;Feng Ye;Binbin Liu;Haoyang Du;Yaakov B.Unigovski;Emmanuel M.Gutman;Roni Shneck

作者机构：State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China State Grid Jilin Electric Power Research InstituteJilin 130021China Department of Materials EngineeringBen-Gurion University of the NegevBeer-Sheva 84105Israel 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2022年第29卷第11期

页      面：2072-2078页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 51471031 and U1660115) the State Key Laboratory for Advanced Metals and Materials, China (No. 2016Z-17) the Program of Introducing Talents of Discipline to Universities, China (No. BP0719004) 

主　　题：FeSi6.5 steel plastic deformation anodic polarization Voce equation 

摘      要：The effect of anodic polarization on the plastic deformation behavior and formability of FeSi6.5 steel at room temperature was experimentally investigated through uniaxial tensile and drawing of wire specimen in sulfuric acid solution with current densities of 0-40 mA/*** formability of the FeSi6.5 steel was significantly improved after the anodic *** plastic elongation of the specimen as an anode in the electrochemical environment was 4.4%-7%,but 2.7%in the *** drawing force under the anodic polarization decreased by 12.5%-26%compared to that in deionized *** softening is mainly attributed to the relief in work hardening caused by surface atomic *** work hardening mechanism of the FeSi6.5 steel wires under anodic polarization condition was analyzed using Hollomon equation and Voce relation combined with the Kocks-Mecking *** data support the view that the surface atom dissolution facilitates dislocation ***6.5 steel wires were obtained using electrochemical cold drawing and presented a smooth surface and good ductility without crack after five-pass drawing with a total cross-section area reduction of 88%.The drawing with the assistance of anodic polarization is a promising technology for processing hard and brittle metal materials.