To study the grain boundary misorientation change and texture evolution in austenitic stainless steel at low cold-rolling reductions, SUS304 austenitic stainless steel samples with a cold-rolling reduction of 5%, 8%, 10%, 15%, 20%, and 23% are prepared. The electron backscatter diffraction analysis reveals that with the increase in the cold-rolling reduction, the proportions of low-angle grain boundary (LAGB) and high-angle grain boundary (HAGB) gradually increase and decrease, respectively. The decrease in HAGB reduces the toughness of the material. With the increase in cold-rolling reduction, the strain area inside the material increases, which enhances the toughness and strength of the steel plate. Austenite textures at different cold-rolling reductions are composed of Brass, Goss, S, and shear texture {011}<122>. The intensity of the Brass-type texture increases with the increasing cold-rolling reduction. The martensite texture mainly consists of R-Cube, Brass, shear texture {111}<110>, {111}<112>, and {332}<113>. When the cold-rolling reduction is less than 15%, the Brass texture appears in the α′-martensite phase. In addition, the intensity of the R-Cube texture increases with the increasing cold-rolling reduction. The martensite phase texture is affected by the austenite phase texture, and its formation can be attributed to the Kurdjumov–Sachs orientation relationship.

中文翻译：

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SUS304奥氏体不锈钢低冷轧下晶界取向差变化及织构演变研究

为了研究低冷轧压下率下奥氏体不锈钢的晶界取向差变化和织构演变，采用冷轧压下率为 5%、8%、10%、15%、20% 和 23 的 SUS304 奥氏体不锈钢样品% 准备好了。电子背散射衍射分析表明，随着冷轧压下量的增加，低角度晶界（LAGB）和高角度晶界（HAGB）的比例分别逐渐增加和减少。HAGB 的降低降低了材料的韧性。随着冷轧压下量的增加，材料内部的应变区增大，从而增强了钢板的韧性和强度。不同冷轧压下量的奥氏体织构由黄铜、高斯、S 和剪切织构{011}<122> 组成。黄铜型织构的强度随着冷轧压下量的增加而增加。马氏体织构主要由R-Cube、黄铜、剪切织构{111}<110>、{111}<112>和{332}<113>组成。当冷轧压下量小于15%时，黄铜织构出现在α'-马氏体相。此外，R-Cube 织构的强度随着冷轧压下率的增加而增加。马氏体相织构受奥氏体相织构的影响，其形成可归因于 Kurdjumov-Sachs 取向关系。