|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||Exploring the plasticity of beta phase strengthened by fine scale, multivariant alpha.
||Syed Idrees Jalali, K.U. Yazar, Mainak Sen, Manaswini Chinara, Shanoob Balachandran, Tejanath Sureddy, Marc de Graef, Satyam Suwas, Dipankar Banerjee
|On-Site Speaker (Planned)
We describe in this contribution the distribution of the alpha phase within large beta grains of the Ti5553 alloy and then examine plasticity of such a microstructure using a variety of techniques. Observations and estimates of slip lengths in such microstructures incorporating ideas of slip transfer between the alpha and beta phases provide good estimates of the yield stress. The evolution of strain and strain partitioning between alpha and beta is examined experimentally through high-resolution EBSD and DIC, coupled with in-situ straining of single beta grains containing a fine-scale distribution of alpha in an SEM. These experimental studies are supported by crystal plasticity simulations that indicate a reasonably match between theory and experiment. It is believed that this study will provide a greater understanding of the plasticity of high strength metastable beta alloys as well as that of the transformed beta constituent of bimodal structures in alpha+beta alloys.
||Titanium, Characterization, Mechanical Properties