| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2024
|
| Presentation Title |
Evaluation of Corrosion Performance of Friction Stir Processed Magnesium Alloys Using Multimodal Analysis Across Length Scales |
| Author(s) |
Sridhar Niverty, Shuai Tan, Venkateshkumar Prabhakaran, Piyush Upadhyay, Hrishikesh Das, Rajib Kalsar, David Garcia, Mageshwari Komarasamy, Glenn Grant, Darrell Herling, Vineet V Joshi |
| On-Site Speaker (Planned) |
Sridhar Niverty |
| Abstract Scope |
Friction Stir Processing (FSP) homogenizes and refines the microstructure through severe plastic deformation. Previous studies have demonstrated that the processed zone is more corrosion resistant as compared to the base Mg alloy. However, the corrosion behavior of the microstructure immediately adjacent to the processed zone, and how it affects the base material under corrosive environments has received little attention. In this study, we have used a multimodal corrosion measurement system to investigate the corrosion behavior of the surface and cross-section of FSP AZ31 and AZ91 Mg alloy plates by imaging the sample, acquiring electrochemical data, and collecting evolved hydrogen. Additionally, Scanning Electrochemical Cell Microscopy (SECCM) was employed to study variation in localized corrosion behavior from the base metal into the stir zone from the advancing and retreating sides. Microscopy was employed to identify the microstructural cause for the enhanced susceptibility to corrosion in the heat affected zone and base material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Other, |