Abstract
The influence of proper intermediate heat treatment on mechanical properties of the ultrafine-grained copper processed by ECAP was investigated. The tensile experiment showed that the ultimate strength is elevated about 50 MPa compared with the sample without intermediate annealing. X-ray diffraction peak broadening analyses have demonstrated that the coherent domain size decreased in some ways with the intermediate annealing, which is the reason for the increase in strength of the copper specimen.
| Original language | English |
|---|---|
| Pages (from-to) | 430-432 |
| Number of pages | 3 |
| Journal | Materials Science and Engineering: A |
| Volume | 483-484 |
| Issue number | 1-2 C |
| DOIs | |
| State | Published - 15 Jun 2008 |
| Externally published | Yes |
Keywords
- Equal channel angular pressing
- Intermediate annealing
- Recovery/recrystallization
- X-ray diffraction