Abstract:The mechanical properties, microstructure, and residual stress of the cold-rolled and aged samples of C19400 alloy were systematically studied. The results show that the maximum tensile strength of the rolled alloy can reach 546 MPa. In addition, the results of both macroscopic and microscopic residual stress show that the residual stress of the rolled alloy is higher, indicating that residual stress is mainly generated during the nonuniform cold rolling plastic deformation process. This is verified in the kernel angle misorientation (KAM) distribution map, because the KAM value of the rolled alloy is higher than that of the aged alloy. At the same time, the evolution of macroscopic and microscopic textures in C19400 alloy was revealed. The results show that the texture types in both rolled and aged alloys are Brass (011)211, Copper (112)111, and S (123)634 deformation textures as well as recrystallized Cube (001)100 textures. And the intensity and volume fraction changes of Copper (112)111 textures are consistent with those of residual stress, which indicates that the presence of Copper (112)111 texture is more conducive to the generation of residual stress.