Table 2.
Average hardness H of respective layers in the AA1050/AA5754 N2 LMC architectures as measured by nanoindentation measurements and resulting hardness gradient ∆H at LMC interfaces. Yield stress and ultimate tensile stress of the monolithic AA1050 N2 and AA5754 N2 materials as determined by uniaxial tensile tests.
| Material | AA1050/AA5754 N2 LMC Systems | ||
|---|---|---|---|
| AA1050 Layers | AA5754 Layers | Gradient (∆H) | |
| Hardness H/GPa | 0.79 ± 0.07 | 1.37 ± 0.11 | 0.58 ± 0.13 |
| Material | Monolithic Materials | ||
| AA1050 N2 Mono | AA5754 N2 Mono | Difference | |
| Yield stress/MPa | 152 ± 5 | 332 ± 5 | 180 ± 7 |
| Ultimate tensile stress/MPa | 172 ± 8 | 361 ± 2 | 189 ± 8 |