Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502389 | Scripta Materialia | 2006 | 4 Pages |
Abstract
The effect of hydrogen on dislocation nucleation is examined on Ni single crystals with (1 1 1) surface orientation with a specifically designed nanoindentation setup for in situ electrochemical experiments. This is the first time that hydrogen/deformation interaction has been studied in situ on a nanoscale under realistic conditions. The effect of the electrochemical potential on the indent load–displacement curve, especially the unstable elastic plastic transition (pop-in) is studied in detail. Clear evidence is provided that hydrogen atoms facilitate homogenous dislocation nucleation.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Afrooz Barnoush, Horst Vehoff,