|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||Heterogeneous and Cooperative Deformation in Two-phase Titanium Alloys: Slip Initiation, Transfer, and Their Effects on Strain Localization
||Shaolou Wei, Cem Tasan
|On-Site Speaker (Planned)
The diverse microstructural combinations in two-phase titanium alloys have enabled fruitful pathways to tailor the macroscopic load-bearing responses. However, plastic deformation coordination between alpha- and beta-phases, especially the underlying deformation micro-events that lead to strain localization and partition still remain elusive and are deem detailed considerations. In this presentation, by studying a Ti-Al-V-Fe alloy and its processing variants through integrated in-situ DIC, in-situ synchrotron X-ray diffraction, and crystallographic calculation, we aim to showcase the exploration of the following three fundamental topics: (1) what are the deformation micro-events that governing strain localization inception? (2) how do strain localization and/or its partition evolve with respect to plastic straining? (3) how do the foregoing deformation micro-events affect damage nucleation and thereby macroscopic failure? Broader indications for mechanistically-guided microstructural design will also be included.
||Mechanical Properties, Modeling and Simulation,