|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Mechanical Behavior at the Nanoscale IV
||Understanding the Fundamental Mechanisms of Serrated Flow in BCC Alloys Using Computational Modeling
||Jaime Marian, Yue Zhao, Lucile Dezerald
|On-Site Speaker (Planned)
The objective of this work is to use fundamental modeling to understand the microscopic mechanisms of serrated flow arising as a consequence of dynamic strain aging in body-centered cubic (bcc) solid solutions. To this end, we develop an experimentally-validated computational methodology capable of (i) resolving the atomistic details of solute-dislocation co-evolution, and (ii) connecting with the mesoscale effects that govern the mechanical behavior of these alloys. We use this improved understanding to identify the regions of the temperature-strain rate phase diagram where serrated flow is suppressed or mitigated for some important technological metallic alloys.
||Planned: Supplemental Proceedings volume