|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Effect of Local Stress on Fault Formation and Propagation within HCP Materials
||Heather Salvador, Christopher Lee, Suveen Mathaudhu
|On-Site Speaker (Planned)
In a recent study, unprecedented strength was achieved in a magnesium alloy due to the introduction of nano-spaced stacking faults via conventional hot rolling. Stacking faults present a viable method for strengthening of magnesium alloys, though the mechanisms behind stacking fault nucleation in hexagonal close-packed materials are not fully understood. This study aims to explore the fundamental mechanisms driving stacking fault nucleation in magnesium alloys. Previous studies have researched dislocation nucleation by taking advantage of the large stresses impinged on a sample surface by indentation instruments. By controlling the force input on a material, this study explores the potential factors influencing stacking fault nucleation, stacking fault propagation, and bulk hardness and strength. Electron microscopy and characterization of material underneath the indent are used to elucidate the effect of load on stacking fault nucleation, and the effect of varying load on stacking fault propagation.
||Planned: Supplemental Proceedings volume