from the conferences organized by TANGER Ltd. provisional website
The hot deformation behavior of a modified nickel-based Nimonic 263 superalloy, based on the physical simulation using torsion tests at different deformation temperatures (1200°C, 1050°C and 900°C) and strain rates (0.01, 0.1 and 1 s-1) has been studied. The flow stress curves showed an initial strain-hardening followed by a peak stress revealing the occurrence of dynamic recrystallization. Based on the data result in the hot torsion tests, equations, allowing to predict the stress-strain curves behavior under different temperature-strain rate conditions, had been derived. The obtained equations can be used for FEM-simulation of real hot deformation processes of Nimonic 263-type alloys.Keywords: superalloy, stress-strain curve, simulation, Nimonic 263, dynamic recrystallization
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