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对轧制下压方向平行和垂直晶粒c轴的两类板材进行150℃轧制(5%下压量)后,利用背散射电子衍射分析(EBSD)研究了轧制试样中不同类型的孪晶组织对静态再结晶的晶粒形核、微观组织及织构的演变的影响。结果表明:含有大量{1011-}-{1012-}双孪晶的样品中,二次孪生有效促进再结晶形核,显著细化晶粒。再结晶晶粒取向规律性不强,有效削弱基面织构。而含有大量{1012-}拉伸孪晶的样品,拉伸孪晶不能有效促进再结晶形核。退火过程中基体不断长大,当再结晶驱动力足够大时,基体会吞并周围拉伸孪晶,同时诱发织构改变,基体取向的织构逐渐增强,拉伸孪晶取向的织构逐步减弱。
After rolling at 150 ° C (5% reduction) for both types of c-axis parallel and perpendicular grain calendering in the direction of the rolling press, backscattered electron diffraction (EBSD) was used to investigate the effect of different types of Effect of Twinned Microstructure on Grain Nucleation, Microstructure and Texture Evolution of Static Recrystallization. The results show that in the samples containing a large number of {1011 -} - {1012} double twins, the secondary twins effectively promote the nucleation of recrystallization and remarkably refine the grains. Recrystallization grain orientation regularity is not strong, effectively weakening the basal texture. The samples containing a large amount of {1012-} tensile twins can not effectively promote the nucleation of recrystallization. When the driving force of recrystallization is large enough, the matrix will swallow and twine around, induce the change of texture, the texture of the matrix orientation will be gradually strengthened and the texture of the orientation of twinning will be gradually weakened .