Final Report: Hardening and Strain Localization in Single and PolycrystallineMaterials Under Cyclic and Monotonic Deformation, January 11, 1985-July 31, 1997

摘要

The subject program on substructure evolution initially focused on strainlocalization produced by fatigue cycling and especially how such localization affects the cyclic response of polycrystalline pure metal. The latter stages have dealt with strain localization in the heavy monotonic deformation of alloys, which eventually produces forms of localized deformation that include coarse slip bands (CSB's), which are aligned to slip planes and macroscopic shear bands (MSB's), which are not aligned to slip planes. These forms of strain localization are important in that they limit the usable ductility of the material in forming processes.