Table 2.
Mechanical properties of tested samples.
| Sample Type | Longitudinal Orientation (L) | Transversal Orientation (T) | ||||
|---|---|---|---|---|---|---|
| YS (MPa) | UTS (MPa) | AR (%) | YS (MPa) | UTS (MPa) | AR (%) | |
| Base Cu-ETP R220 | 242 ± 1.5 | 252.7 ± 1.5 | 67.3 ± 6.7 | 232.0 ± 0.7 | 261.2 ± 0.4 | 69.2 ± 1.0 |
| FSW: V = 40 mm/min | 87.7 ± 0.5 | 216.0 ± 0.8 | 69.4 ± 3.5 | 101.3 ± 0.5 | 220.7 ± 0.5 | 53.1 ± 7.2 |
| FSW: V = 60 mm/min | 87.3 ± 0.5 | 215.0 ± 0.8 | 70.5 ± 1.5 | 92.7 ± 0.5 | 218.7 ± 0.5 | 60.1 ± 4.2 |
| FSW: V = 80 mm/min | 82.0 ± 7.3 | 209.0 ± 8.5 | 40.3 ± 2.9 | 82.3 ± 0.9 | 216.3 ± 1.7 | 61.2 ± 2.2 |
| Annealed Cu-ETP | 33.0 ± 0.8 | 215.7 ± 0.5 | 71.3 ± 1.9 | - | - | - |
| TIG welded joint [16] | 53 | 168 | 5.7 | - | - | - |