杨兴文,韩静涛,刘靖,姬帅

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

采用显微硬度计、光学显微镜、X射线衍射仪等手段,对经复合方法及热轧工艺制备的高硅钢薄板(覆层为Fe-3%Si,芯层为Fe-10%Si)进行不同工艺的热处理,研究其软化行为,并通过温轧实验进行验证。结果表明:经850℃保温1 h,采用盐水冷的热处理工艺可使得复合板综合硬度最低;晶粒大小不是高硅钢复合板软化的主要原因;B2相的出现,使得材料的有序度下降,从而造成复合板芯层硬度的降低,同时急冷还可导致材料的芯层出现B20相。经热处理工艺后在720℃下温轧可获得表面质量良好、厚度为0.45 mm的薄板,高温扩散后整体Si元素含量为6.2%。

关键词(KeyWords)： 高硅钢;复合板;热处理;硬度;B2相

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杨兴文,韩静涛,刘靖,姬帅

DOI: 10.13289/j.issn.1009-6264.2014.12.029

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