| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10634231 | Scripta Materialia | 2005 | 5 Pages |
Abstract
Polycrystalline NiAl has been deformed in torsion to large strains at temperatures between 800Â K and 1300Â K. The deformation curves indicate continuous dynamic recrystallization and strain weakening. If applying a conventional power law rheology to the data the activation energy and the stress exponent decrease with increasing stress and/or temperature. A model based on cross-slip of screw dislocations is proposed as the creep mechanism for steady state creep.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
B. Klöden, E. Rybacki, C.-G. Oertel, W. Skrotzki,