东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (5): 658-661.DOI: -

• 材料与冶金 • 上一篇    下一篇

大压下率冷轧无取向硅钢再结晶织构演变

杨换平,沙玉辉,张芳,左良   

  1. (东北大学材料各向异性与织构教育部重点实验室,辽宁沈阳110819)
  • 收稿日期:2012-11-08 修回日期:2012-11-08 出版日期:2013-05-15 发布日期:2013-07-09
  • 通讯作者: 杨换平
  • 作者简介:杨换平(1982-),女,山西河津人,东北大学博士研究生;沙玉辉(1969-),男,辽宁岫岩人,东北大学教授,博士生导师;左良(1963-),男,安徽桐城人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51171042);国家高技术研究发展计划项目(2012AA03A505);教育部高等学校博士学科点专项基金资助项目(20110042110002).

Recrystallization Texture Development in Heavily Rolled Nonoriented Silicon Steel

YANG Huanping, SHA Yuhui, ZHANG Fang, ZUO Liang   

  1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China.
  • Received:2012-11-08 Revised:2012-11-08 Online:2013-05-15 Published:2013-07-09
  • Contact: ZHANG Fang
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摘要: 研究了冷轧95%变形量无取向硅钢不同退火温度(710~1050℃)下再结晶织构特征.再结晶刚完成时(710℃退火),呈现强γ({111<112>~<134>)与弱{114}<481>织构特征;随退火温度升高至900℃,γ明显减弱,{114}<481>组分持续增强,形成典型的{h,1,1}<1/h,1,2>织构;进一步升温至1050℃,再结晶织构不再发生明显变化.基于EBSD分析,{114}<481>组分的持续强化可归因于其明显的尺寸优势以及较高频率的高能晶界(取向差角为20°~45°).

关键词: 无取向硅钢, 再结晶织构, 晶粒长大, 晶粒尺寸分布, 晶界特征分布

Abstract: A nonoriented silicon steel was heavily rolled to 95% reduction and subsequently annealed at 710~1050℃ to investigate recrystallization texture evolution. When annealed at 710℃ with complete recrystallization, the texture is characterized by a strong partial γ fiber spreading from {111}<112> to {111}<134> and a weak {114}<481> component. As annealing at 900℃, γ fiber is decreased significantly while {114}<481> is increased consistently, producing a typical {h,1,1}<1/h,1,2> fiber. After annealing at 1050℃, the texture does not change significantly. Based on EBSD analysis, the strengthened {114}<481> component can be ascribed to the significant size advantage and higher frequency of highenergy grain boundary with misorientation angle located at 20°~45°.

Key words: nonoriented silicon steel, recrystallization texture, grain growth, grain size distribution, grain boundary character distribution

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