Table 4 Comparison of mechanical properties and electrical conductivity of pure copper as described in this work with combinations of other processes presented in the professional literature.
Material | Processing | Sample size | True strain | Grain size, d2 (nm) | UTS (MPa) | YS (MPa) | HV 0.2 | IACS (%) | References |
|---|---|---|---|---|---|---|---|---|---|
Cu 99.7% | CBD(1) | 210 µm | 7.2 | 145 | 790 | 680 | – | 68.5 | |
Cu 98.5% | ARB(2) | 30 × 1 mm (wide x thickness) | 50% | 180 | 723 | – | 185 | - | |
Cu 99.96% | ECAP(3) | 10 mm | 16 | 440 | 419.24 | 385 | – | 95.35 | |
Cu 99.44% | ECAP + rolling | 25 × 2 mm (wide x thickness) | – | 610 | 320 | – | 112 | 81 | |
Cu 99.96% | ECAP | 10 mm | 16 | 500 | – | – | – | 94.3 | |
Cu 99.99% | ECAP | 20 mm | 4.62 | – | 388 | 331 | – | – | |
Cu 99.97% | ECAP | 10 mm | 8 | 470 | 371 | 361 | – | – | |
Cu 99.81% | ECAP | 10 mm | 8 | 520 | 361 | 343 | – | – | |
Cu 99.95% | ECAP | 10 × 10 | 12 | 440 | – | – | 125 | – | |
Cu 99.95% | HE | 10 mm | 3.89 | 228 | 464 | 456 | 123 | 97.05 | This work |
