About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
Presentation Title |
Mechanical Behavior of Wrought Aluminum in Hydrogen Environments |
Author(s) |
Adam B. Freund, Kester Clarke, Amy Clarke, Suveen Mathaudhu |
On-Site Speaker (Planned) |
Adam B. Freund |
Abstract Scope |
Aluminum alloys are of interest for hydrogen environments due to their natural passivating layer providing resistance to hydrogen incursion. However, in service, these alloys can face degradation when exposed to moisture under applied loading. Hydrogen embrittlement studies to date have focused primarily on the as-cast, homogenized, and aged states, however there is a lack of information on embrittlement behavior and mechanisms in wrought materials. In this study, Al alloys are prepared via rolling to different reductions, and mechanically tested in humid air to promote hydrogen ingress. The effects of composition, microstructure, dislocation density and/or grain boundary density on hydrogen trapping will be investigated via post-mortem chemical and microstructural analyses. The knowledge gained from this study will enable the expansion of our fundamental understanding of embrittlement mechanisms for the design of hydrogen resilient aluminum alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Environmental Effects, Mechanical Properties, |