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

We investigate hydrogen-induced crack initiation and subcritical crack propagation in high strength steels by addressing hydrogen transport and interaction with material deformation. Our experiments demonstrate that hydrogen reduces the fracture resistance of single-notched bend specimens of a lath martensitic steel while changing the morphology of the fracture surfaces from microvoid coalescence in the absence of hydrogen to a mixture of “quasi-cleavage” and intergranular. We modeled the onset of fracture in this steel by assuming that failure occurs by dislocation pile-ups against high angle grain boundaries whose strength is assumed to be reduced by hydrogen. The model reproduces the experimentally measured...

Introduction
Hydrogen-Induced Failure of a Lath Martensitic Steel
Modeling Subcritical Crack Growth
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