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Relationship between relaxation mechanisms and strain aging in an austenitic FeMnC steel

Abstract : Basic relaxation experiments confirm that dislocation gliding in a V-microalloyed Fe-22 wt.% Mn-0.6 wt.% C steel is thermally activated at room temperature. This impediment to gliding is believed to be a necessary condition for the occurrence of mechanical twinning inducing the twinning induced plasticity effect in the considered family of high manganese austenitic steels. The relaxation experiments also induce a static strain aging phenomenon enhanced by applied stress and systematically trigger the dynamic strain aging mechanism and observable serrations on further tensile loading.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00585371
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Submitted on : Tuesday, April 12, 2011 - 4:49:03 PM
Last modification on : Monday, November 23, 2020 - 10:38:04 AM

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S. Allain, O. Bouaziz, T. Lebedkina, M. Lebyodkin. Relationship between relaxation mechanisms and strain aging in an austenitic FeMnC steel. Scripta Materialia, Elsevier, 2011, 64, pp.741-744. ⟨10.1016/j.scriptamat.2010.12.039⟩. ⟨hal-00585371⟩

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