2. Texture formation in special processes

In the previous section, five different texture-forming processes were considered. Each of them includes several variants. We also mentioned that the deformation conditions in the processes depend on the crystal structure, i.e. on parameters internal to the material. Finally, they depend on a number of external parameters such as temperature, degree of deformation, pressure, friction, electric and magnetic fields, to mention but a few. In this situation, it is virtually impossible to have complete mathematical models for all these processes, including all possible parameters, and therefore impossible to give a comprehensive mathematical formula for all current M operators modifying texture 6. In fact, this is one of the most important areas of current research in texture development. In particular situations, however, it is possible to arrive at mathematical formulations of M, which can...