| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7713030 | International Journal of Hydrogen Energy | 2016 | 9 Pages |
Abstract
Despite its superior corrosion resistance, super duplex stainless steels (SDSS) are prone to hydrogen embrittlement. In this paper, a novel in situ electrochemical nanoindentation technique is used to investigate the hydrogen effect on the nanomechanical response of the existing phases in SDSS, i.e. ferrite and austenite. A systematic change in electrochemical (EC) charging potential revealed the interconnected nature of the hydrogen effect on the nanomechanical properties of SDSS. It is shown that the hydrogen effects in each phase are very different and are strongly coupled with the existing residual stresses in the microstructure induced during the manufacturing and/or induced by EC hydrogen charging.
Related Topics
Physical Sciences and Engineering
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Authors
Nousha Kheradmand, Roy Johnsen, Jim Stian Olsen, Afrooz Barnoush,