|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Microstructural Evolution of 316L Stainless Steel Subjected to Shear
||Veronica Livescu, Curt A. Bronkhorst, Benjamin M. Morrow, Cheng Liu, Hashem M. Mourad, Bineh G. Ndefru, Carl P. Trujillo
|On-Site Speaker (Planned)
The failure process of ductile materials involves shear localization, void nucleation, void growth and coalescence, events that begin at the single crystal length scale. Shear localization and adiabatic shear band formation are important components of the damage and failure process and their quantification is critical to the development of physically-predictive damage evolution models. The Compact Forced Simple Shear specimen was used to test the shear behavior of 316L stainless steel in arrested Split Hopkinson Pressure Bar (SHPB) experiments with in-situ ultra-high-speed Digital Image Correlation (DIC). Results presented here include DIC-measured shear strains, and Electron Backscatter Diffraction (EBSD) and Transmission Electron Microscopy (TEM) investigations of post-mortem microstructure looking at microstructural changes including misorientations and recrystallization. These are model-coupled experiments providing microstructural data for the validation of material models that accurately represent shear behavior of ductile materials. A brief discussion on model implementation will follow.
||Planned: Supplemental Proceedings volume