|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation Mechanisms
||In-situ EBSD Analysis and Crystal Plasticity FE Simulations in a CP Titanium Sheet
||Joo-Hee Kang, Ji Hoon Kim, Chan Hee Park, 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 of microstructure and texture is needed for understanding of deformation mechanism. In this study, the effect of initial grain size and tensile direction on the deformation behavior in CP titanium was analyzed and predicted using in-situ EBSD analysis and crystal plasticity simulations. The initial microstructure and orientation obtained by EBSD were used to develop crystal plasticity finite element model. The EBSD results were obtained during the tensile deformation in the direction of RD and TD. Also, the deformation behavior was evaluated in the specimen with different grain size. They were compared with the calculated ones by crystal plasticity finite element simulations. Prismatic slip system was dominant, whilst other slip systems and twinning were operating. Twinning was suppressed in the specimen with smaller grain size.
||Planned: Supplemental Proceedings volume