|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Quantifying the Influence of Coarse Intermetallic Particles on Twin Transmission
||Benjamin Anthony, Victoria Miller
|On-Site Speaker (Planned)
Understanding and controlling deformation twinning behavior is of critical interest to magnesium alloys and other HCP metals as this mechanism can help accommodate strain; however, this mechanism also provides a preferential crack pathway along the twin boundary. This is particularly the case during instances of twin transmission, where a twin impinging on a grain boundary nucleates an adjacent twin in the neighboring grain due to intense local stresses. Many commercial Mg alloys feature coarse grain boundary intermetallic particles in their as-produced state, which may interfere with or exacerbate the localized stresses near the impingement site, leading to changes in the likelihood of transmission. A combination of Crystal Plasticity - Fast Fourier Transform modeling and EDS-EBSD is used to analyze instances of twinning and twin transmission near grain boundary particles in Mg alloys to determine how particle morphology, position, and grain orientation modify twinning behavior.
||Magnesium, Modeling and Simulation,