Abstract
The response of copper to shock loading and cold working is well documented. Both shock loaded and cold-worked annealed copper display a high dislocation density and increased yield strength. However, as of yet no work has been carried out on the microstructure of shock-loaded cold-worked copper. Both annealed and cold-worked copper have been tested using a gas gun to ascertain the effect of shock loading on cold-worked copper. The annealed copper was loaded to a peak pressure of 5 GPa and the cold-worked copper was loaded to peak pressures of 6 and 10 GPa. It was found that the shock-loaded cold-worked copper had a higher hardness than the shock-loaded annealed copper and that the hardness of the cold-worked copper increased with peak shock pressure. Each specimen analyzed displayed different variations on the classic shocked copper microstructure, which was ascribed to the different momentum trapping apparatus used.
Original language | English |
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Pages (from-to) | 4518-4521 |
Number of pages | 4 |
Journal | Metallurgical and Materials Transactions A |
Volume | 46 |
Issue number | 10 |
Early online date | 17 Jun 2014 |
DOIs | |
Publication status | Published - Oct 2015 |
Keywords
- Electrical Discharge Machine
- High Dislocation Density
- Shock Loading
- Annealed Copper
- Dislocation Cell Structure
ASJC Scopus subject areas
- Condensed Matter Physics
- Metals and Alloys
- Mechanics of Materials