|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Integrative Materials Design III: Performance and Sustainability
||Plasticity in Textured Ti-6Al-4V under Tensile and Dwell-fatigue Loading
||Tiantian Zhang, Diana Lados
|On-Site Speaker (Planned)
Textured regions where crystallographic orientations of grains are similarly orientated develop in alpha titanium as a result of the manufacturing process. The resulting influence on mechanical properties remains elusive for the scientific community and aero engine companies. The problem has been related to anisotropic properties of the hexagonal closed packed structure. In this work, plastic deformation of a textured Ti-6Al-4V was studied using combined Digital Image Correlation (DIC) and Electron Backscatter Diffraction (EBSD). Crystal orientation was characterized using EBSD. Strain distribution was investigated using DIC in conjunction with statistical slip trace analysis. The resulting strains after different loading steps demonstrate that the texture has effects on the distribution of plasticity. Long range strain localization was observed. Orientation of the textured region was correlated with the onset of slip. Basal, pyramidal, and prismatic slips were studied statistically in both textured and non-textured regions.
||Planned: Supplemental Proceedings volume