Abstract

The mechanical behavior of different types of polycrystalline materials shows many common features in the ductile inelastic flow regime. It is typically controlled by dislocations motion, which involves the competitive action of hardening and recovery processes that induces a strong dependency upon mechanical history. The object of this paper is to show how a constitutive model, named SUVIC, can be used to describe and predict in a unified manner the inelastic response of various types of materials. For that purpose, the authors use laboratory test results obtained on alkali halides (NaCl) and on metallic alloys (Inconel 738LC and A508 steel) at different homologous temperatures.

Issue Section:
Technical Papers
Keywords:
Constitutive Equations, Relaxation, Viscoplasticity, Plasticity, Creep, Metal Alloys, Alkali Halides, viscoplasticity, work hardening, dislocation motion, recovery-creep, plastic flow, internal stresses, stress relaxation, alkali metal halides, alloy steel, chromium alloys, nickel alloys, sodium compounds, superalloys
Topics:
Alloys, Creep, Flow (Dynamics), Hardening, Relaxation (Physics), Steel, Stress, Temperature, Constitutive equations, Dislocations, Alloy steel, Solids
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