A D V A N C E D M A T E R I A L S & P R O C E S S E S | A P R I L 2 0 2 2 2 0 hardening coefficient, and n represents the strain hardening exponent, the Voce plasticity model is expressed as: wherein σ, σy, and ε are the same variables found in the Ludwik-Hollomon plasticity model expression, σs is the saturation stress, and εo is the charac- teristic strain. Reference 3 is a valuable resource for more information related to PIP testing. USING PIP IN MATERIALS PROCESSING The streamlined PIP testing meth- od could benefit a wide range of applications within the advanced mater- Fig. 1 — (a) Indentation plastometer fromPlastometrex; (b) FEM-based schematic of a plastometer for PIP testing; and (c, d, e, and f), the convergence process underpinning PIP data analysis[2]. (a) (b) (c) (d) (e) (f) ials and processing community. For example, consider the case of capturing plasticity parameters and intrinsic mechanical properties as a function of thermomechanical processing times and temperatures along with standard aging curves, which traditionally rely on indentation hardness or tensile test data as a function of processing
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