合金经过形变和热处理过程,物理、力学性能发生了显著变化,这不仅取决于合金相的变化、大小和分布,并且也和基体的精细结构,即嵌镶块大小、取向,其中所存在的微观应力(第二类内应力)和位错的分布有密切的关系。因此,研究这些精细结构,将有助 After deformation and heat treatment, the physical and mechanical properties of the alloy have changed significantly, which depends not only on the change, size and distribution of the alloy phase, but also on the fine structure of the matrix, ie, the size and orientation of the insert, and the microscopic The stress (the second type of internal stress) and dislocation distribution are closely related. Therefore, studying these fine structures will help