东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (9): 1311-1316.DOI: 10.12068/j.issn.1005-3026.2016.09.020

• 材料与冶金 • 上一篇    下一篇

冷轧压下率对双辊铸轧硅钢形变和再结晶织构的影响

孙超1,2, 沙玉辉1, 张芳1, 左良1   

  1. (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; 2. 河钢集团唐钢公司技术中心, 河北 唐山063016)
  • 收稿日期:2015-06-08 修回日期:2015-06-08 出版日期:2016-09-15 发布日期:2016-09-18
  • 通讯作者: 孙超
  • 作者简介:孙超(1981-),男,河北衡水人,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,安徽怀宁人,东北大学教授,博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目 (2012AA03A505);国家自然科学基金资助项目(51171042, 51101031).

Effect of Cold Rolling Reduction on Deformation and Recrystallization Texture in Twin-Roll Cast Non-oriented Silicon Steel

SUN Chao1,2, SHA Yu-hui1, ZHANG Fang1, ZUO Liang1   

  1. 1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China; 2. Hesteel Group Tangsteel Company Technical Center, Tangshan 063016, China.
  • Received:2015-06-08 Revised:2015-06-08 Online:2016-09-15 Published:2016-09-18
  • Contact: SHA Yu-hui
  • About author:-
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摘要: 2.0mm厚双辊铸轧Fe-2.8%Si-0.8%Al硅钢带坯进行直接冷轧和退火,研究了不同冷轧压下率样品的形变与再结晶织构特征.形变织构主要由α(<110>//RD),γ(<111>//ND)和λ(<001>//ND)纤维织构组分构成,其取向密度峰值分别位于001<110>,111<110>和001<110>~<210>.随压下率提高(40%~90%),各主要形变织构组分增强,压下率为60%时,剪切带特征最显著.再结晶织构包含Goss(110<001>),Cube(001<100>),λ,113<361>和111<112>等织构组分.随压下率提高,再结晶机制由剪切带形核主导转变为形变带和晶界形核主导,导致再结晶Goss组分减弱,而113<361>,Cube,λ以及111<112>再结晶织构组分增强.

关键词: 冷轧压下率, 无取向硅钢, 双辊铸轧, 形变织构, 再结晶织构

Abstract: The twin-roll cast Fe-2.8%Si-0.8%Al strips were directly cold rolled and annealed to investigate the effect of cold rolling reduction on deformation and recrystallization texture. The deformation texture is mainly composed of α, γ and λ fibers with peak at 001<110>, 111<110> and 001<110>~<210>, respectively. The main deformation texture components are enhanced when the reduction increases from 40% to 90%, while the shear banding becomes the most notable feature at 60% reduction. The recrystallization texture is characterized by Goss, λ fiber, 113<361>, Cube and 111<112> components. The dominant nucleation sites transform from shear bands to deformation bands and grain boundary regions as the cold rolling reduction increases, resulting in the weakening of Goss and the strengthening of λ fiber, 113<361>, Cube and 111<112> components.

Key words: cold rolling reduction, non-oriented silicon steel, twin-roll strip casting, deformation texture, recrystallization texture

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