利用电子背散射衍射技术,分析了TWIP钢冷轧变形后退火再结晶微观组织的晶界特征、晶粒取向差和织构变化。研究结果显示:同种成分时随退火温度升高,Σ1CSL含量不断减少,Σ3CSL含量增多,B{011}<211>织构的强度有了明显的上升,G{011}<100>、Cu T{552}<115>呈下降趋势;同一温度下合金元素Mn、Al、C含量增多时,Σ1CSL含量略有增加,Σ3CSL含量显著增加,α取向线强度总体呈上升趋势,τ与γ取向线的起伏较大。 The grain boundary characteristics, grain orientation difference and texture change of annealed recrystallization microstructure of TWIP steel after cold rolling deformation were analyzed by electron backscatter diffraction technique. The results show that the strength of B {011} <211> texture increases obviously with the increase of annealing temperature, Σ1CSL content and Σ3CSL content. The values ​​of G {011} <100>, Cu T {552} <115> showed a decreasing trend. With the increase of Mn, Al and C contents, the contents of Σ1CSL increased slightly and the content of Σ3CSL increased slightly. The strength of α-orientation lines generally showed an upward trend. Ups and downs.