Strengthening of copper by dislocation substructures
Document Type
Article
Publication Date
1-1977
Department
Department of Materials Science and Engineering
Abstract
Substructural strengthening in pure copper deformed by cold rolling is shown to depend on both the mean free path and the level of nonuniform strain associated with the dislocation substructure. Contributions from the nonuniform strain are particularly important because the mean free path becomes constant after deformations of ∼50 pct R.A., whereas the material continues to work harden. The behavior of the nonuniform strains at large deformations is also found to be closely related to dynamic recovery. Development of an empirical expression for the strengthening in terms of the substructural parameters is shown to lead to a modified Hall-Petch type relation.
Publication Title
Metallurgical Transactions A
Recommended Citation
Truckner, W.,
&
Mikkola, D.
(1977).
Strengthening of copper by dislocation substructures.
Metallurgical Transactions A,
8(1), 45-49.
http://doi.org/10.1007/BF02677262
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/4513