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Dynamic recovery, strain hardening and flow stress in hot working of 316 steel

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The strain hardening rateθ was determined as a function of flow stressσ in torsion tests over the range 900–1200 °C, 0·1–5·0s−1 in both as-cast and worked 316 stainless steel. Changes in slope of theθ-σ curves and extrapolation to theθ=0 axis permitted determination of the saturation stress σ *s , and the critical strain for recrystallization which could be compared with the peak in the flow curve. Analysis of the dependence on temperature and strain rate showed that the data could be fitted either to the Kocks-Mecking equations or to the sinh and Arrhenius functions. The flow stresses and the empirical constants in the above equations are compared with those of 304 and 317 steels which contain less and more Mo, respectively.

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Ryan, N.D., McQueen, H.J. Dynamic recovery, strain hardening and flow stress in hot working of 316 steel. Czech J Phys 39, 458–465 (1989). https://doi.org/10.1007/BF01597803

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