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<p>An integrated model combining CPFEM and CA is used to examine the evolution of microstructure and texture during the primary recrystallization of coarse-grained oriented electrical steel. The results of the simulation show that the cold-rolled microstructure is composed of {110} &lt;001&gt;, {111} &lt;112&gt;, and {001} &lt;110&gt; textures. The texture and dislocation density were mapped to the CA model to examine the processes of recrystallization nucleation and grain coarsening. The orientation is transferred from the cold-rolled texture to the recrystallization texture at nucleation sites, and grain nucleation occurs at sites with high dislocation density. The findings show that the recrystallized grains are equiaxed and uniform after 180 s. After 600 s of annealing, only one grain forms across the thickness direction in some regions because of the coarse process. Grain coarsening is driven by dislocation density and grain boundary curvature. The cold-rolled and recrystallization texture and microstructure are validated through a comparative analysis with experimental results. The CPFEM &amp; CA integrated model effectively illustrates the evolution of microstructure and texture in three-dimensional space throughout the primary recrystallization process for as-received coarse grains.</p>

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The Primary Recrystallization Microstructure and Texture Prediction in Electrical Steel with Centimeter-Scale Grains Using the Integrated Crystal Plasticity and Cellular Automaton Model

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • Yalong Luo,
  • Haochen Ding,
  • Luyang Miao,
  • Chi Zhang,
  • Liwen Zhang,
  • Haitao Liu,
  • Chongxiang Yue

摘要

An integrated model combining CPFEM and CA is used to examine the evolution of microstructure and texture during the primary recrystallization of coarse-grained oriented electrical steel. The results of the simulation show that the cold-rolled microstructure is composed of {110} <001>, {111} <112>, and {001} <110> textures. The texture and dislocation density were mapped to the CA model to examine the processes of recrystallization nucleation and grain coarsening. The orientation is transferred from the cold-rolled texture to the recrystallization texture at nucleation sites, and grain nucleation occurs at sites with high dislocation density. The findings show that the recrystallized grains are equiaxed and uniform after 180 s. After 600 s of annealing, only one grain forms across the thickness direction in some regions because of the coarse process. Grain coarsening is driven by dislocation density and grain boundary curvature. The cold-rolled and recrystallization texture and microstructure are validated through a comparative analysis with experimental results. The CPFEM & CA integrated model effectively illustrates the evolution of microstructure and texture in three-dimensional space throughout the primary recrystallization process for as-received coarse grains.