|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fatigue in Materials: Fundamentals, Multiscale Modeling and Prevention
||In Situ Microstructural Fatigue Investigation of Magnesium Alloys
||Chengyang Mo, Brian Wisner, Antonios Kontsos
|On-Site Speaker (Planned)
This research focuses on understanding the relationship between microstructural changes and fatigue behavior of Magnesium alloys. Due to its hexagonal close-packed structure, basal, prismatic and pyramidal slip as well as deformation twinning are activated during mechanical loading. These crystallographic deformation mechanisms result to a particular macroscopic fatigue behavior characterized by an unusual shape of the obtained hysteresis loops showing anisotropic hardening and asymmetric tension/compression yield stresses. In this talk, results obtained by performing in situ Digital Image Correlation measurements combined with Electron Backscattered Diffraction measurements are used to investigate microstructural changes and strain localizations at the grain level during fatigue loading. The result provides insights into the effects of deformation twinning on microplasticity and crack initiation.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)