|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||High Performance Steels
||High-fidelity crystal plasticity finite element modeling of multi-phase medium-Mn TWIP-TRIP steel: considerations in microstructure reconstruction and meshing for capturing the influences of phase constituents
||Pengfei Shen, Yang Liu, Jake Benzing, Xiang Zhang
|On-Site Speaker (Planned)
A high-fidelity crystal plasticity finite element (CPFE) model is developed to understand the influences of phase constituents on the microstructural response in Medium-Mn steel. An automated workflow si first developed to process a set of serial Electron backscatter diffraction (EBSD) scans and stack them together for exact microstructure reconstruction is developed, followed by a meshing process to establish a high-fidelity finite element (FE) model. This FE model is then used in CPFE simulation, accounting for both twining- and transformation-induced plastic deformation. A series of microstructures are reconstructed from the same set of EBSD data with different resolutions when processing the EBSD data, and element sizes and types. Both the overall stress-strain response, as well as the local response are studied and compared, which identifies the appropriate resolution and element size needed in capturing the response in different constituents. The influence of different constituents are then studied systematically.