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The mechanisms of and the different theoretical approaches dedicated to the strain hardening of twinning-induced plasticity steels are presented and discussed using results available in the literature. The analysis shows that twinning is the first-order mechanism explaining the impressive strain hardening, and modeling is now available for an accurate description, including the effect of carbon content.
The effect of different tensile pre-strains at 400°C on subsequent room-temperature deformation behaviour of a Fe–Mn–C twinning-induced plasticity steel has been investigated. We report a surprising finding that the strain hardening at a constant strain rate and ambient temperature depends solely on the flow stress irrespective of the strain history. An important consequence of this observation is...
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