常化工艺对取向硅钢组织织构和磁性能的影响

doi:10.13251/j.issn.0254-6051.2024.03.009

金属热处理 ›› 2024, Vol. 49 ›› Issue (3): 50-55.DOI: 10.13251/j.issn.0254-6051.2024.03.009

常化工艺对取向硅钢组织织构和磁性能的影响

尤文豪¹, 陈霞¹, 陈彬²

1.武汉科技大学材料与冶金学院, 湖北武汉 430081;
2.上海交通大学材料科学与工程学院, 上海 200240

收稿日期:2023-09-01 修回日期:2024-01-12 出版日期:2024-03-25 发布日期:2024-04-24
通讯作者: 陈霞,副教授,博士,E-mail:dmcad@126.com
作者简介:尤文豪(1995—),男,硕士研究生,主要研究方向为金属材料的加工成形与热处理,E-mail:1290079414@qq.com。

Effect of normalizing process on microstructure and magnetic properties of grain-oriented silicon steel

You Wenhao¹, Chen Xia¹, Chen Bin²

1. School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
2. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2023-09-01 Revised:2024-01-12 Online:2024-03-25 Published:2024-04-24

摘要/Abstract

摘要： 利用EBSD技术和单片测量法,研究了常化温度对含3.2wt%Si高磁感取向(Hi-B)硅钢组织、织构和磁性能的影响。研究表明,随着常化温度的增加,常化板的柱状晶粒发生完全再结晶,织构类型相似,都以α织构、λ织构和Goss织构为主。脱碳退火后,织构主要都由{114}<481>、γ织构和Goss织构组成,初次再结晶晶粒尺寸随着常化温度的增加而先增大后减小(900 ℃时最大,最大为20.3 μm)。在850 ℃常化温度下,脱碳退火后的初次再结晶试样中对磁性能有利的{114}<481>织构和Goss织构的面积分数达到最高(分别为26.1%和4.5%)。在常化温度为850 ℃时,Hi-B钢可获得最佳磁性能,B₈=1.938 T,P_1.7/50= 0.828 W/kg。

关键词: 取向硅钢, 常化温度, 显微组织, 织构, 磁性能

Abstract: Effect of normalizing temperature on the microstructure, texture and magnetic properties of 3.2wt%Si high magnetic induction orientation (Hi-B) silicon steel was studied by means of EBSD technique and single-chip measurement method. The results show that with the increase of normalizing temperature, the columnar grains of the normalized plate are completely recrystallized, and the texture types are similar to α texture, λ texture and Goss texture. After decarburizing annealing, the texture mainly consists of {114}<481>, γ texture and Goss texture, and the primary recrystallized grain size increases first and then decreases with the increase of normalizing temperature (maximum at 900 ℃ , up to 20.3 μm). After normalizing annealing at 850 ℃, the area fractions of {114}<481> texture and Goss texture, which are beneficial to magnetic properties, reach the highest (26.1% and 4.5%, respectively) in the primary recrystallized specimen. When the normalizing temperature is 850 ℃, the Hi-B steel can obtain the best magnetic properties, B₈=1.938 T, P_1.7/50= 0.828 W/kg.

Key words: grain-oriented silicon steel, normalizing temperature, microstructure, texture, magnetic properties

中图分类号:

TG142.77

尤文豪, 陈霞, 陈彬. 常化工艺对取向硅钢组织织构和磁性能的影响[J]. 金属热处理, 2024, 49(3): 50-55.

You Wenhao, Chen Xia, Chen Bin. Effect of normalizing process on microstructure and magnetic properties of grain-oriented silicon steel[J]. Heat Treatment of Metals, 2024, 49(3): 50-55.

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常化工艺对取向硅钢组织织构和磁性能的影响

Effect of normalizing process on microstructure and magnetic properties of grain-oriented silicon steel

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