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Materials (Basel). 2018 Jul 8;11(7). pii: E1161. doi: 10.3390/ma11071161.

Effect of Cold Rolling Process on Microstructure, Texture and Properties of Strip Cast Fe-2.6%Si Steel.

Author information

1
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. yunbo_xu@126.com.
2
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. andrewjiao@163.com.
3
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. xqjxja@163.com.
4
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. dmisra2@utep.edu.
5
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. ljp@mail.neu.edu.cn.

Abstract

The use of twin-roll strip casting for the preparation of non-oriented silicon steel has attracted widespread attention in recent years, but related reports are limited. In this study, both one- and two-stage cold rolling with three intermediate annealing temperatures were employed to produce strip cast non-oriented silicon steel. The evolution of the microstructure and texture through the processing routes and its effect on magnetic properties were studied. Compared with one-stage rolling, two-stage rolling increased the in-grain shear bands and the retention of Cube texture in the cold rolled sheets, thereby promoting the nucleation of favorable Goss and Cube grains and restraining the nucleation of harmful {111}<112> grains. With the increase in intermediate annealing temperature, the &eta;-fiber texture in annealed sheets was gradually enhanced, and the average grain size was increased, leading to significant improvement of magnetic properties.

KEYWORDS:

cold rolling; magnetic properties; non-oriented silicon steel; strip casting; texture

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