The detailed evolution of microstructure and texture of a low-Ni Cr–Mn–N austenitic stainless steel under bending deformation was studied. The effect of austenite grain orientation on the deformation-induced transformation and deformation twinning mechanisms was investigated in selected grains of analogous orientation located near the outer and inner radius, where distinct deformation mechanisms have been identified in different regions accordingly. With moving towards the outer radius, the concurrent occurrence of transformation- and twinning-induced plasticity was detected, while with moving towards the inner radius, twinning-induced plasticity was hindered. Texture of austenite showed the characteristic single fibre for face-centred cubic materials with a stronger intensity around the α_γ –fibre. The deformation-induced ε-martensite returned an intense ${\left\{hkil\right\}}_{\mathrm{\epsilon }}$ fibre. The extension twinning was detected only in regions near to inner radius. Interestingly, the deformation-induced αʹ-martensite showed the uncommon fibre upon bending deformation.

研究了低Ni Cr-Mn-N奥氏体不锈钢在弯曲变形下组织和织构的详细演变。在外半径和内半径附近选择取向相似的晶粒中，研究了奥氏体晶粒取向对形变诱导的变形和孪晶孪生机制的影响，因此在不同区域已确定了不同的形变机理。朝着外半径移动时，检测到同时发生了由相变和孪生引起的可塑性，而朝着内半径移动时，阻碍了由孪生引起的可塑性。奥氏体的质地显示出对面心立方材料特性单纤维与周围的α更强的强度_γ-纤维。形变诱发的ε马氏体返回强烈${\left\{Hķ\mathrm{一世}升\right\}}_{\mathrm{\epsilon }}$纤维。的仅在接近内半径的区域中检测到延伸孪生。有趣的是，由变形引起的αʹ-马氏体表现出罕见 纤维在弯曲变形时。