line-equation id-i-eq1"> \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) Annealing texture in twin-roll casting non-oriented 6.5 wt% Si electrical steel

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• 作者：Hao-Ze Li ; Zhen-Yu Liu ; Xiang-Long Wang ; Hao-Ming Ren…
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：52
• 期：1
• 页码：247-259
• 全文大小：6,491 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803
• 卷排序：52

文摘

Twin-roll casting was adopted to fabricate a 2.7-mm-thick material of the non-oriented 6.5 wt% Si electrical steel, which was then hot rolled, warm rolled, and annealed. A detailed study of the microstructural and textural evolutions in the whole processing route was conducted by optical microscopy, X-ray diffraction, and electron backscattered diffraction. Beneficial λ-fiber texture, strong \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle, \) and Goss textures dominated the annealing texture. Special attention was focused on the origin and evolution of the \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) texture during the annealing process. The results showed that the nucleation sites of the \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) nuclei were not only confined to deformation bands of the deformed \( \left\{ {001} \right\} \langle 1\overline{1} 0\rangle \) grain but also widely distributed in many other deformation heterogeneities of the warm-rolled sheet. The high similarities demonstrated by the nucleation and recrystallization textures, and the gradually intensified \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) recrystallization texture indicated the combined operations of the oriented nucleation and oriented growth mechanisms during the evolution of the \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) recrystallization texture. After recrystallization, some \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) grains which already acquired the advantage in grain size over those clustered \( \left\{ {111} \right\} \langle 1\overline{2} 1\rangle \) grains due to the orientation pinning effect tended to gain further growth during the grain growing stage, resulting in the prevalence of the \( \left\{ {114} \right\} \langle 4\overline{8} 1\rangle \) annealing texture.