Skip to Main Content
Skip Nav Destination
ASME Press Select Proceedings

International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments

Editor
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:
ISBN:
9780791861387
No. of Pages:
800
Publisher:
ASME Press
Publication date:
2017

Petrochemical pressure vessels operating in high pressure H2 at high temperature suffer from hydrogen embrittlement (HE) during repressurization after shutdown cooling to ambient temperature. HE may be mitigated by introduction of hydrogen (H) traps in the steel microstructure to suppress accumulation of H necessary for embrittlement at fracture initiation sites. Experimentally, nanoscale vanadium carbides (VC) significantly improve the HE resistance of bainitic steel specific to closed system H introduced by elevated temperature exposure to H2. To understand the effect of VC precipitates on HE of 2¼Cr-1Mo-¼V steel, we analyze re-partitioning of H among various trap states, first...

Introduction
Hydrogen Transport in an Elastoplastically Deforming Material under Varying Temperature
Hydrogen Re-Distribution Upon Cooling to Room Temperature and Subsequent Loading
Role of VC Precipitates in Hydrogen Re-Distribution Upon Cooling
Effect of Loading on Re-Partitioning of Hydrogen Among Crack Tip Trap States and Lattice Sites
Discussion
Conclusions
Acknowledgements
References
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