退火温度对新能源汽车用含Ce无取向电工钢组织和织构的影响

doi:10.13251/j.issn.0254-6051.2021.02.026

金属热处理 ›› 2021, Vol. 46 ›› Issue (2): 149-152.DOI: 10.13251/j.issn.0254-6051.2021.02.026

退火温度对新能源汽车用含Ce无取向电工钢组织和织构的影响

孔祥兵¹, 任慧平^1,2, 金自力^1,3, 李涛^1,3, 吴忠旺^1,3

1.内蒙古科技大学材料与冶金学院, 内蒙古包头 014010;
2.内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室, 内蒙古包头 014010;
3.内蒙古自治区新金属材料重点实验室, 内蒙古包头 014010

收稿日期:2020-07-23 出版日期:2021-02-25 发布日期:2021-05-08
通讯作者: 任慧平,教授,博士,E-mail:renhuiping@163.com
作者简介:孔祥兵(1990—),男,硕士研究生,主要研究方向为无取向硅钢生产工艺的研究,E-mail:1049480569@qq.com。
基金资助:
国家自然科学基金(51761033);内蒙古自然科学基金(2019MS05054)

Effect of annealing temperature on microstructure and texture of Ce-bearing non-oriented electrical steel for new energy automobiles

Kong Xiangbing¹, Ren Huiping^1,2, Jin Zili^1,3, Li Tao^1,3, Wu Zhongwang^1,3

1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China;
2. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resource, Inner Mongolia, Baotou Inner Mongolia 014010, China;
3. Key Laboratory of Advance Metals and Materials of Inner Mongolia, Baotou Inner Mongolia 014010, China

Received:2020-07-23 Online:2021-02-25 Published:2021-05-08

摘要/Abstract

摘要： 采用SEM、EBSD和XRD等分析手段研究了退火温度对含Ce新能源无取向电工钢组织及织构的影响。结果表明:800 ℃退火后,试验钢边部和中心部位均能观察到再结晶组织及亚晶组织,α线织构中的{112}<110>取向密度最高,γ线织构中的{111}<112>取向密度较弱,退火板存在少量η织构;830～920 ℃退火后,温度越高,再结晶越充分,α线织构取向密度下降,γ线织构取向密度增加,η织构基本消失;试验钢在950 ℃退火后发生了完全再结晶,平均晶粒尺寸为48.29 μm,γ线织构中的{111}<112>取向密度最高,为11.36。

关键词: 无取向电工钢, Ce, 组织, 织构, 退火处理

Abstract: Effect of annealing temperature on microstructure and textures of Ce-bearing non-oriented electrical steel for new energy automobiles was studied by means of SEM, EBSD and XRD. The results show that recrystallized and sub-crystalline microstructure can be observed in both edge and center after annealing at 800 ℃, the intensity of {112}<110> orientation in α texture is highest, but that of {111}<112> orientation in γ texture is weaken. In addition, a small amount of η texture exists in the annealing sheet. After annealing at the range of 830-920 ℃, the higher annealing temperature, the more sufficient recrystallization is, the intensity of α texture decreases while γ texture increases, but η texture totally disappears. The complete recrystallization of tested steel annealed at 950 ℃ has occurred, at which state the average grain size is 48.29 μm and the highest intensity of {111}<112> orientation in γ texture can reach 11.36.

Key words: non-oriented electrical steel, Ce, microstructure, texture, annealing treatment

中图分类号:

TG142.1

孔祥兵, 任慧平, 金自力, 李涛, 吴忠旺. 退火温度对新能源汽车用含Ce无取向电工钢组织和织构的影响[J]. 金属热处理, 2021, 46(2): 149-152.

Kong Xiangbing, Ren Huiping, Jin Zili, Li Tao, Wu Zhongwang. Effect of annealing temperature on microstructure and texture of Ce-bearing non-oriented electrical steel for new energy automobiles[J]. Heat Treatment of Metals, 2021, 46(2): 149-152.

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退火温度对新能源汽车用含Ce无取向电工钢组织和织构的影响

Effect of annealing temperature on microstructure and texture of Ce-bearing non-oriented electrical steel for new energy automobiles

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