|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Characterization of the Factors Influencing Retained Austenite Transformation in Q&P Steels via EBSD Analysis
||Derrik Adams, David Fullwood, Jeff Cramer, Shamoon Irfan, Hannah Evanson, Tyler Mathis, Stephen Cluff, Mike Miles, Eric Homer, Tyson Brown, Raj Mishra, Robert Kubic
|On-Site Speaker (Planned)
Formable Advanced High-Strength Steels (AHSS) have a unique combination of high strength and ductility, which makes them ideal in the effort to lightweight vehicles. The AHSS in this study rely on the Transformation Induced Plasticity (TRIP) effect, in which retained austenite (RA) grains transform to martensite during plastic deformation, providing extra ductility via the transformation event. Understanding the factors involved in RA transformation is therefore key to optimizing the microstructure of these steels. This research seeks to increase understanding of the correlations between microstructure and RA transformation in TRIP steels. Through in-situ tensile tests combined with EBSD and FSD scans, local strain maps at the micro-scale can be created and analyzed with DIC software. With this information, it is hoped that the questions of when and why transformation occurs can be answered, allowing an improved model of the transformation to be created and further optimization of these advanced materials.
||Planned: Supplemental Proceedings volume