Open AccessFinal Report: Hardening and Strain Localization in Single and Polycrystalline Materials Under Cyclic and Monotonic Deformation, January 11, 1985 - July 31, 1997
Author(s) -
C. Laird,
J.L. Bassani
Publication year - 2000
Language(s) - English
Resource type - Reports
DOI - 10.2172/764611
Subject(s) - substructure , materials science , crystallite , strain hardening exponent , slip (aerodynamics) , monotonic function , shear (geology) , hardening (computing) , composite material , plasticity , deformation bands , structural engineering , geometry , crystallography , metallurgy , microstructure , mathematics , physics , engineering , mathematical analysis , chemistry , thermodynamics , layer (electronics)
The subject program on substructure evolution initially focused on strain localization 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