Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7913379 | Scripta Materialia | 2015 | 4 Pages |
Abstract
In situ straining experiments and post-mortem observations have been carried out in pure Fe in order to investigate the dislocation mechanisms in the temperature range of dynamic strain aging. The results show that dislocations are locked in pure screw orientation at 200 °C and start to move viscously at higher temperatures, up to more than 400 °C. The unexpected reappearance of a Peierls mechanism at such a high temperature is proposed to result from the interaction between screw dislocations and solute carbon atoms.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D. Caillard, J. Bonneville,