| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Insights of Organic Compounds as Permeation Barriers for Hydrogen Embrittlement Prevention in Steel |
| Author(s) |
Sourav Kumar Saha, Byungrok Moon , Namhyun Kang |
| On-Site Speaker (Planned) |
Sourav Kumar Saha |
| Abstract Scope |
Hydrogen, the key element in the energy sector, adsorbed on the metal surface, diffuses and interacts to the microstructure, therefore reducing rapidly mechanical properties of the metals. This study was conducted to inhibit hydrogen penetration/permeation into the metal matrix and improve hydrogen embrittlement (HE) resistivity. The effects of 6-Benzylaminopurine (6-BAP) and 2-Mercaptobenzimidazole (2-MBI) on the hydrogen permeation into steel were studied using electrochemical hydrogen permeation. 6-BAP and 2-MBI showed different role in hydrogen permeation. 6-BAP molecules adsorbed on the metal surfaces produced a thin film inhibiting the formation and adsorption of the hydrogen atoms (Hads) and thereby its penetration into the metal matrix. Whereas, 2-MBI promoted hydrogen penetration into the metal by increasing chemical potential of adsorbed hydrogen atoms. Inhibiting hydrogen penetration and improving HE resistivity of steel by 6-BAP provided a novel solution for the prevention of hydrogen-induced cracking. |
| Proceedings Inclusion? |
Planned: |