| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced High Strength Steels IV
|
| Presentation Title |
Multi-scale Modeling of Hydrogen Embrittlement in High-strength Steels |
| Author(s) |
Tarek M. Hatem |
| On-Site Speaker (Planned) |
Tarek M. Hatem |
| Abstract Scope |
Steel is the most used metal in industry today with a range of applications that include energy, transportation and construction. One outstanding technological problem yet to be solved is the localization and failure of steel alloys due to hydrogen-embrittlement (HE). Hydrogen atoms affect the dislocation core, materials cohesion, and vacancies clustering causing the material capacity for plastic deformation to decrease. Better predictive models of the hydrogen effect in steel structure shall enable new engineered class of materials that is HE resistant. Such predictive models must account for the multi-scale nature of failure while simultaneously incorporating the effect of hydrogen and steel microstructure. Therefore, the current research work developed reliable multiscale computational models that incorporate hydrogen effects in different scales (i.e. nano, micro and macro). These models and experiments will be able to capture materials behavior. The developed framework accounts for long and short-range defects evolution and their interaction with hydrogen. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |