|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deformation and Transitions at Interfaces
||L-51: Effect of Deformation Heterogeneity of TWIP Steels on Near Boundary Twinning Behavior Using Crystal Plasticity Simulation
||Jaimyun Jung, Jae Ik Yoon, Jung Gi Kim, Marat Latypov, Jin You Kim, Hyoung Seop Kim
|On-Site Speaker (Planned)
A full-field calculation on the mechanical twinning of hot-rolled TWIP steel during tensile deformation is investigated under a crystal plasticity framework. Microstructures are first observed through electron backscatter diffraction (EBSD) technique to obtain data to construct a statistically equivalent synthetic microstructure through a synthetic microstructure building software. Afterwards, grain-to-grain micromechanical response is analyzed to assess the collective twinning behavior of microstructural volume element under tensile deformation. In particular, twinning behavior near grain boundaries are observed to identify the effect of strain heterogeneity. The simulated results shed light on the general trend in micromechanical twinning behavior correlated with orientation, change in orientation and grain interactions during the course of tensile deformation.