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The hot deformation behavior and associated microstructural evolution of a coarse-grained Nb-bearing austenitic stainless steel (316Nb) has been investigated by the means of torsion tests at high temperature [1223 K to 1423 K (950 °C to 1150 °C)] followed by microstructural characterization. The starting microstructure was varied by applying prior annealing. Except for strains below 10 pct, the resistance...