Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1446658 | Acta Materialia | 2012 | 10 Pages |
Abstract
The plastic flow field produced by machining is utilized to access a range of deformation parameters in pure copper: strains of 1–7, strain rates of 1–1000 s−1 and temperatures as low as 77 K. The strength and stability of the severe plastic deformation microstructures including cellular, elongated, equiaxed and twinned types are characterized. Unique combinations of strengthening and stability are identified in the case of heavily twinned microstructures. These observations offer insights for improving the stability of both single-phase and multicomponent ultrafine-grained alloys.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
C. Saldana, A.H. King, S. Chandrasekar,