Nonlinear kinematic hardening rule parameters - relationship to substructure evolution in polycrystalline nickel

General cyclic plasticity results and detailed analyses of experimental dat a from constant plastic strain amplitude, completely reversed, tension-comp ression tests on polycrystalline nickel with two grain sizes are reported. These analyses focus on kinematic hardening behavior and are based on Armst rong-Frederick-type kinematic hardening rules and Masing-type assumptions. Juxtaposition of these analyses with observations of specimen surface relie f and substructure evolution using TEM provides a context for discussion of mechanisms and modeling of nonlinear kinematic hardening and its relations hip to heterogeneous microstructure in metals. (C) 2000 Elsevier Science Lt d. All rights reserved.