Phenomenological Modeling of Hardening and Thermal Recovery in Metals

[+] Author and Article Information
K. S. Chan

Southwest Research Institute, San Antonio, Texas 78284

S. R. Bodner

Technion, Haifa 32000, Israel

U. S. Lindholm

Southwest Research Institute San Antonio, Texas 78284

J. Eng. Mater. Technol 110(1), 1-8 (Jan 01, 1988) (8 pages) doi:10.1115/1.3226003 History: Received January 09, 1987; Online September 15, 2009


Modeling of hardening and thermal recovery in metals is considered within the context of unified elastic-viscoplastic theories. Specifically, the choices of internal variables and hardening measures, and the resulting hardening response obtained by incorporating saturation-type evolution equations into two general forms of the flow law are examined. Based on the analytical considerations, a procedure for delineating directional and isotropic hardening from uniaxial hardening data has been developed for the Bodner-Partom model and applied to a nickel-base superalloy, B1900 + Hf. Predictions based on the directional hardening properties deduced from the monotonic loading data are shown to be a good agreement with results of cyclic tests.

Copyright © 1988 by ASME
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