黄希,项利,仇圣桃,宋志国

• 1:昆明理工大学材料科学与工程学院
• 2:钢铁研究总院连铸技术国家工程中心
• 3:新金属材料国家重点实验室

摘要(Abstract)：

运用EBSD和光学显微镜,研究了0.25%~0.45%Cu对无取向电工钢热轧板显微组织,成品板显微组织、织构和磁性能的影响。实验结果表明:卷取过程中Cu元素在热轧板表层的偏聚作用显著阻碍了热轧板表层再结晶晶粒长大,导致热轧板表层晶粒尺寸随着Cu含量增加而逐渐较小,但热轧板中间晶粒尺寸变化不大。同时发现Cu元素能够明显改善织构类型,使有利织构组分增加,不利织构组分减少,同时减弱织构强度。从实验结果可知0.35%Cu能够显著改善电工钢的磁性能,铁损P15/50最低达到4.1 W/kg,磁感B50最高值达到1.8 T。

关键词(KeyWords)： 无取向电工钢;磁性能;Cu;表面偏聚;织构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50934009)

作者(Author): 黄希,项利,仇圣桃,宋志国

DOI: 10.13289/j.issn.1009-6264.2013.11.011

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