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

• 工艺研究 • 上一篇    下一篇

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. 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 Huiping1,2, Jin Zili1,3, Li Tao 1,3, Wu Zhongwang1,3   

  1. 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: 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

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