Table 1. Mechanical properties and precipitate parameters for the low and high nickel alloys (LNiS and HNiS) for both the solid solution (SS) and after aging for 10 h at 500°C in vacuum (A10 h). A 2000 h denotes a high nickel alloy after aging for 2000 h at 500°C.
| Aging condition | Hardness (VPN) | Elongation to failure% | YS MPa | UTS MPa | Radius Cu nm | Radius Ni nm | Number density 1024 m-3 | |
|---|---|---|---|---|---|---|---|---|
| HNiS (4 wt.% Ni) | SS | 282 ± 6 | 19 | 741 | 849 | N/A | N/A | N/A |
| A10 h | 462 ± 7 | 16 | 1363 | 1457 | 1.3 ± 0.18 | 1.6 ± 0.34 | 3.6 | |
| A2000 h | N/A | N/A | N/A | N/A | 2.5 ± 1 | 5 ± 3 | 0.1 | |
| LNiS (2.5 wt.% Ni) | SS | 271 ± 5 | 18 | 734 | 829 | N/A | N/A | N/A |
| A10 h | 391 ± 6 | 16.5 | 1168 | 1266 | 1.3 ± 0.25 | 1.3 ± 0.32 | 3.6 |