Back to Search
Start Over
Stress-dependent hardening-to-softening transition of hydrogen effects in nanoindentation of a linepipe steel.
- Source :
-
International Journal of Hydrogen Energy . Jan2014, Vol. 39 Issue 4, p1897-1902. 6p. - Publication Year :
- 2014
-
Abstract
- Abstract: We explored the influences of hydrogen on small-scale strength of a linepipe steel through nanoindentation experiments with four pyramidal indenters. Interestingly, a transition from hydrogen-induced hardening to softening was observed as indenter sharpness increases. The transition was analyzed based on the enhancement in hydrogen's elastic shielding effects for a sharper indenter, which could be indirectly evidenced by the stress effects on indentation pile-up, dislocation density, and rate dependency of hardness. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 39
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 93414753
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2013.11.060