|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||In-situ EBSD Analysis and Crystal Plasticity FE Simulations in a CP Titanium
||Joo-Hee Kang, Ji Hoon Kim, Chan Hee Park, Jong Woo Won, Chang-Seok Oh
|On-Site Speaker (Planned)
The alpha titanium alloys exhibit unique anisotropic mechanical behavior due to the activation of multiple slip systems and twinning. Therefore the quantitative analysis is needed for understanding of deformation mechanism. In this study, the effect of initial texture and tensile direction on the deformation behavior in CP titanium sheets and billets was analyzed and predicted using in-situ EBSD analysis and crystal plasticity simulations. The initial microstructural information obtained by EBSD was used to develop crystal plasticity finite element model. For in-situ test, the tensile direction was parallel to RD and TD in sheets and perpendicular to extrusion direction in billets. EBSD results and slip traces were compared with the calculated ones by crystal plasticity finite element simulations. Tensile twins were observed when the basal plane of grains was aligned to the tensile direction. Prismatic slip system was dominant, however other slip systems and twinning were operating during tensile deformation.
||Planned: Supplemental Proceedings volume