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Abstract We investigated the evolution of dislocation patterns under low cycle fatigue in a Fe-17Mn-1.5Al-0.3C (wt. %) steel with transformation-induced plasticity (TRIP). To this end, quasi in-situ electron channelling contrast… Click to show full abstract
Abstract We investigated the evolution of dislocation patterns under low cycle fatigue in a Fe-17Mn-1.5Al-0.3C (wt. %) steel with transformation-induced plasticity (TRIP). To this end, quasi in-situ electron channelling contrast imaging under controlled diffraction conditions (cECCI) was employed. Cross-correlation based electron backscattering diffraction (CC-EBSD) with high angular resolution was applied to measure the distributions of residual strain/stress and geometrically necessary dislocations (GNDs). Planar slip mode was found to be dominating in this low stacking fault energy (SFE) steel under the small strain amplitudes that were applied here (
Journal Title: International Journal of Plasticity
Year Published: 2019
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