常化温度对Fe-3.24%Si-0.065%Cr高磁感取向硅钢组织及织构演变的影响

doi:10.13251/j.issn.0254-6051.2025.06.025

金属热处理 ›› 2025, Vol. 50 ›› Issue (6): 164-169.DOI: 10.13251/j.issn.0254-6051.2025.06.025

常化温度对Fe-3.24%Si-0.065%Cr高磁感取向硅钢组织及织构演变的影响

郝娟娟¹, 刘朋成¹, 卢晓禹¹, 邬宇轩¹, 冯海涛¹, 王俊刚¹, 徐涛¹, 孙婷婷²

1.内蒙古包钢钢联股份有限公司技术中心, 内蒙古包头 014010;
2.内蒙古科技大学材料科学与工程学院, 内蒙古包头 014010

收稿日期:2024-12-07 修回日期:2025-03-13 出版日期:2025-06-25 发布日期:2025-07-08
作者简介:郝娟娟(1992—),女,工程师,博士,主要研究方向为硅钢产品研发,E-mail:1023844254@qq.com
基金资助:
高效输变电装备用低温高磁感取向硅钢关键技术研发和产业化应用(2023YFHH0026);新能源汽车驱动电机定子用高效无取向硅钢生产关键技术开发及产业化应用(2023YFHH0017)

Effect of normalizing temperature on microstructure and texture evolution of Fe-3.24%Si-0.065%Cr high magnetic induction grain-oriented silicon steel

Hao Juanjuan¹, Liu Pengcheng¹, Lu Xiaoyu¹, Wu Yuxuan¹, Feng Haitao¹, Wang Jungang¹, Xu Tao¹, Sun Tingting²

1. Technology Center, Inner Mongolia Baotou Steel Union Co., Ltd., Baotou Inner Mongolia 014010, China;
2. School of Materials Science and Engineering, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China

Received:2024-12-07 Revised:2025-03-13 Online:2025-06-25 Published:2025-07-08

摘要/Abstract

摘要： 采用OM、EBSD及XRD技术研究两段常化工艺(1080~1150 ℃×3 min+930 ℃×3 min)高温段温度对Fe-3.24%Si-0.065%Cr取向硅钢组织及织构演变的影响。结果表明,常化板不同厚度处晶粒均发生再结晶且有所长大,随着常化温度升高,常化板的再结晶比例逐渐提升,组织均匀性提高。常化温度为1150 ℃时,晶粒显著增大,出现混晶组织。常化板对热轧板织构类型有一定继承性,1120 ℃常化板,表层和次表层Goss织构较强,且取向密度高于热轧板。同时,常化处理增加高能晶界数量,利于后期Goss织构吞并周围晶粒异常长大。实际生产中,常化高温段温度应接近1120 ℃,可获得优异的组织和织构。

关键词: 高磁感取向硅钢, 常化, 组织, 织构

Abstract: Effect of temperature in high-temperature stage of two-stage normalizing process (1080-1150 ℃×3 min+930 ℃×3 min) on microstructure and texture evolution of Fe-3.24%Si-0.065%Cr grain-oriented silicon steel was studied by using optical microscopy (OM), electron backscatter diffraction (EBSD) and X-ray diffraction (XRD). The results show that the grains at different thicknesses of the normalized plate all undergo recrystallization and grow to some extent, As the normalizing temperature increases, the proportion of recrystallization in the normalizing plate gradually increases, and the uniformity of the microstructure improves. When the normalizing temperature is 1150 ℃, the grain size increases significantly and mixed grain microstructure appears. The normalized plate has a certain inheritance of the texture type of the hot-rolled plate. At 1120 ℃, the Goss texture of the normalized plate is relatively strong in both the surface layer and the subsurface layer, and the orientation density is higher than that of the hot-rolled plate. At the same time, normalizing treatment increases the number of high-energy grain boundaries, which is conducive to the abnormal grain growth of the Goss texture by swallowing surrounding grains. In actual production, the temperature of the high-temperature stage of normalizing should be close to 1120 ℃, and excellent microstructure and texture can be obtained.

Key words: high magnetic induction grain-oriented silicon steel, normalizing, microstructure, texture

中图分类号:

TM275

郝娟娟, 刘朋成, 卢晓禹, 邬宇轩, 冯海涛, 王俊刚, 徐涛, 孙婷婷. 常化温度对Fe-3.24%Si-0.065%Cr高磁感取向硅钢组织及织构演变的影响[J]. 金属热处理, 2025, 50(6): 164-169.

Hao Juanjuan, Liu Pengcheng, Lu Xiaoyu, Wu Yuxuan, Feng Haitao, Wang Jungang, Xu Tao, Sun Tingting. Effect of normalizing temperature on microstructure and texture evolution of Fe-3.24%Si-0.065%Cr high magnetic induction grain-oriented silicon steel[J]. Heat Treatment of Metals, 2025, 50(6): 164-169.

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常化温度对Fe-3.24%Si-0.065%Cr高磁感取向硅钢组织及织构演变的影响

Effect of normalizing temperature on microstructure and texture evolution of Fe-3.24%Si-0.065%Cr high magnetic induction grain-oriented silicon steel

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