Author:

Keywords:

Science & Technology, Technology, Materials Science, Multidisciplinary, Materials Science, ROLLED TANTALUM, SPUTTERING EXPERIMENTS, ANNEALING BEHAVIOR, TEXTURE EVOLUTION, STORED ENERGY, RECRYSTALLIZATION, DEPENDENCE, STEELS, MICROSTRUCTURE, DEFORMATION, 0204 Condensed Matter Physics, 0912 Materials Engineering, 0913 Mechanical Engineering, Materials, 4016 Materials engineering, 4017 Mechanical engineering, 5104 Condensed matter physics

Abstract:

© Copyright Materials Research Society 2018. Strain path changes during clock rolling cause more serious interaction between adjacent grains, resulting in the occurrence of interactive regions (IRs) with random orientations. Furthermore, plenty of new grains with relatively random orientations are introduced by the subsequent annealing of these IRs. The morphology of the IR and the origin of random orientations were therefore investigated in this study, and the electron backscatter diffraction technique was used to characterize crystallographic orientations of nuclei and deformed matrices. A short-Time annealing was imposed on a specimen to catch the transient nucleation behaviors. The results indicate that the orientations of nuclei are similar to their surrounding deformed matrices, especially the points with larger local-misorientation. Additionally, the shape of new grains depends on where it forms, and it is suggested that this fact mainly results from the great difference in stored energies between deformed matrices with {111} and {100} orientations.