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低温取向硅钢常化工艺和渗氮工艺对组织、织构和磁性能的影响

李霞 杨平 贾志伟 张海利

李霞, 杨平, 贾志伟, 张海利. 低温取向硅钢常化工艺和渗氮工艺对组织、织构和磁性能的影响[J]. 工程科学学报, 2019, 41(5): 610-617. doi: 10.13374/j.issn2095-9389.2019.05.007
引用本文: 李霞, 杨平, 贾志伟, 张海利. 低温取向硅钢常化工艺和渗氮工艺对组织、织构和磁性能的影响[J]. 工程科学学报, 2019, 41(5): 610-617. doi: 10.13374/j.issn2095-9389.2019.05.007
LI Xia, YANG Ping, JIA Zhi-wei, ZHANG Hai-li. Effects of normalizing process and nitriding process on the microstructure, texture, and magnetic properties in low-temperature grain-oriented silicon steel[J]. Chinese Journal of Engineering, 2019, 41(5): 610-617. doi: 10.13374/j.issn2095-9389.2019.05.007
Citation: LI Xia, YANG Ping, JIA Zhi-wei, ZHANG Hai-li. Effects of normalizing process and nitriding process on the microstructure, texture, and magnetic properties in low-temperature grain-oriented silicon steel[J]. Chinese Journal of Engineering, 2019, 41(5): 610-617. doi: 10.13374/j.issn2095-9389.2019.05.007

低温取向硅钢常化工艺和渗氮工艺对组织、织构和磁性能的影响

doi: 10.13374/j.issn2095-9389.2019.05.007
详细信息
  • 中图分类号: TG142.71

Effects of normalizing process and nitriding process on the microstructure, texture, and magnetic properties in low-temperature grain-oriented silicon steel

  • 摘要: 利用电子背散射衍射技术(EBSD)、扫描电镜(SEM)分析了低温取向硅钢常化工艺、渗氮工艺对常化组织、再结晶组织与抑制剂的影响,对比研究了常化冷却速率、渗氮温度和渗氮量对再结晶组织、织构和磁性能的影响规律.结果表明,常化冷却速率越快,一次再结晶晶粒尺寸越小.常化冷却速率较慢时,高温渗氮的样品一次再结晶晶粒尺寸偏大,使二次再结晶驱动力降低,二次再结晶温度提高,且渗氮量低,追加抑制剂不足,最终二次再结晶不完善.高温渗氮与低温渗氮导致脱碳板中抑制剂尺寸不同,高温渗氮表层抑制剂与次表层抑制剂尺寸基本无差异,低温渗氮表层抑制剂尺寸比次表层抑制剂尺寸大.低温渗氮且渗氮量低的样品虽然二次再结晶较完善,但由于其常化温度低、常化冷却速率快,一次再结晶晶粒尺寸小,二次再结晶开始温度稍早,黄铜取向晶粒出现,最终磁性差.渗氮量较高的高温渗氮和低温渗氮样品虽都能基本完成二次再结晶,但磁性存在差异,磁性差的原因是高温渗氮样品的最终退火板中出现较多的偏{210}<001>取向晶粒.
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  • 收稿日期:  2018-05-23

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