铸轧Fe-1.3%Si无取向硅钢冷轧过程中剪切带的演变

Evolution of the Shear Band in Cold-Rolling of Strip-Cast Fe-1.3% Si Non-Oriented Silicon Steel.

作者信息

Zhang Yuanxiang, Xia Yukun, Dun Hao, Wang Yang, Fang Feng, Zhang Yu, Zhang Jiecheng, Chen Qi, Zhai Kuangyu, Misra Raja Devesh Kumar

机构信息

State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China.

Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, EL Paso, TX 79968, USA.

出版信息

Materials (Basel). 2021 Feb 6;14(4):775. doi: 10.3390/ma14040775.

DOI:10.3390/ma14040775

PMID:33562135

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7916066/

Abstract

Cube texture and microstructural evolution of as-cast non-oriented silicon steel (1.3% Si) during cold rolling and annealing were studied. The results showed that the as-cast microstructure with grain size in the range of 100-500 μm had a weak texture. The strong orientation was mainly located at {100} and {110} planes. A significant content of shear-deformed grains oriented with {110}<110> were obtained by cold-rolling, and many regions oriented with Cube texture were distributed in the shear bands. During cold-rolling, the orientation of the shear-deformed microstructure tilted towards the {111}<112> orientation, while the matrix orientation retained {110}<110>. On further cold-rolling, the residual part of {110}<110> experienced shear deformation, forming more shear bands, strengthening the Cube orientation. During annealing, Cube orientation grains nucleated in the shear bands leading to strong Cube texture, and corresponding B was 1.83T/1.79T.

摘要

研究了铸态无取向硅钢（1.3%Si）在冷轧和退火过程中的立方织构和微观组织演变。结果表明，铸态组织的晶粒尺寸在100-500μm范围内，织构较弱。强取向主要位于{100}和{110}平面。通过冷轧获得了大量以{110}<110>取向的剪切变形晶粒，并且在剪切带中分布有许多以立方织构取向的区域。在冷轧过程中，剪切变形微观组织的取向向{111}<112>取向倾斜，而基体取向保持{110}<110>。进一步冷轧时，{110}<110>的残余部分经历剪切变形，形成更多的剪切带，强化了立方取向。在退火过程中，立方取向晶粒在剪切带中形核，导致形成强立方织构，对应的B为1.83T/1.79T。