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利用基于体视学原理和电子背散射衍射技术(EBSD)的五参数分析法(FPA),研究了99.9%纯铁经厚度减缩量为90%轧制变形后,在620℃退火过程中再结晶晶界面的取向分布。结果表明:在纯铁轧制变形后的再结晶退火过程中,其晶界面取向分布先向{1 1 1}集中,然后转变为取向于其他多个晶面上的发散型分布,并且这种转变是经过晶界的局部调整机制实现的。在退火过程中,其∑3晶界面取向分布及其界面匹配存在规律性变化,并受到退火前轧制变形方式的影响。
The five-parameter analysis (FPA) based on stereological theory and electron backscatter diffraction (EBSD) was used to study the effect of 99.9% pure iron after rolling deformation at 90% The Orientation Distribution of Crystalline Grain Interface. The results show that during the recrystallization annealing after the deformation of the pure iron, the orientation distribution of the crystal interface is firstly concentrated to {1 1 1} and then to the divergent distribution oriented on the other multiple crystal planes, and this Change is through the grain boundary of the local adjustment mechanism to achieve. During the annealing process, the orientation distribution of Σ3 crystal interface and its interface matching have regular changes, and are affected by the rolling deformation before annealing.