Skip to Main Content
Skip Nav Destination
ASME Press Select Proceedings
International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions
B. P. Somerday
B. P. Somerday
Search for other works by this author on:
P. Sofronis
P. Sofronis
Search for other works by this author on:
No. of Pages:
ASME Press
Publication date:

Two high strength Microalloyed Steels with different microstructures and similar yield strengths were evaluated under hydrogen charging conditions and different static stress levels. The bainitic steel shows significant resistance to crack incubation even at high stress levels, showing elapsed times above 107 seconds (4 months) before a visible crack appears and twofold elapsed times to propagate very short cracks (less than 1 mm). The martensitic steel shows catastrophic failures with very fast crack growth rates. This shows that microstructure plays a significant role for crack initiation and propagation for steels with similar yield strengths under hydrogen charging conditions. The bainitic steel structure and the grain boundaries could effectively retard the hydrogen and stress level effects to prevent fast crack initialization and propagation.

Exerimental Procedures
Results and Discussion
This content is only available via PDF.
You do not currently have access to this chapter.
Close Modal

or Create an Account

Close Modal
Close Modal