金属热处理 ›› 2024, Vol. 49 ›› Issue (4): 78-82.DOI: 10.13251/j.issn.0254-6051.2024.04.013

• 组织与性能 • 上一篇    下一篇

热处理工艺和铜含量对高硅无取向硅钢织构的影响

薛润东1, 方锡祯2   

  1. 1.北京科技大学 新材料研究院, 北京 100083;
    2.北京科技大学 材料科学与工程学院, 北京 100083
  • 收稿日期:2024-01-04 修回日期:2024-03-14 出版日期:2024-04-25 发布日期:2024-05-27
  • 作者简介:薛润东(1965—),女,高级工程师,博士,主要研究方向为微观结构分析,E-mail:xrd@ustb.edu.cn
  • 基金资助:
    江西省中央引导地方科技发展资金项目(2022ZDD03079)

Effect of heat treatment process and copper content on texture of high-silicon non-oriented silicon steel

Xue Rundong1, Fang Xizhen2   

  1. 1. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China;
    2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2024-01-04 Revised:2024-03-14 Online:2024-04-25 Published:2024-05-27

摘要: 采用背散射电子衍射技术(EBSD)对无Cu与含Cu高硅无取向硅钢热处理过程的织构进行了检测,分析了微量Cu元素对高硅无取向硅钢织构的影响,并对其微观机理进行了探究。结果表明,在1000 ℃高温再结晶退火时,添加微量Cu元素对硅钢成品的织构起到明显的恶化作用;高温退火工艺可以更充分发挥剪切带优化织构的作用,但含微量Cu元素的无取向硅钢对剪切带优化织构有明显的抑制作用,其原因与基体中弥散析出的含Cu析出相有关。

关键词: 含Cu析出相, 无取向硅钢, 织构, 剪切带, 热处理

Abstract: Effect of copper content on the texture of two high-silicon non-oriented silicon steels without Cu and with trace Cu was analyzed by EBSD technology, and the microscopic mechanism was also investigated. The results indicate that after high temperature annealing at 1000 ℃, the addition of trace Cu element has an obvious harmful effect on the texture of finished silicon steel product. The high temperature annealing process plays a more full role in optimizing the texture by the shear bands, while such optimizing effect is inhibited obviously by adding of trace Cu to the non-oriented silicon steel, which is attributed to the dispersive distribution of the copper precipitates in the steel matrix.

Key words: copper precipitates, non-oriented silicon steel, texture, shear band, heat treatment

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