Test type |
Loading rate \(\dot{\text{\ σ}}\) (MPa/s) |
Duration of peak
stress tp (min) |
Unloading rate
\({\dot{\sigma}}^{{}^{\prime}}\) (MPa/s) |
Unloading rate \({\dot{\sigma}}^{{}^{\prime}}\)
(MPa/s) |
Duration of valley stress tv (min) |
Duration of valley stress tv (min) |
Endurance
life (h) |
Endurance
life (h) |
Cycles to failure (Nf) |
Static creep |
12 |
infinite |
- |
- |
- |
37.2 |
37.2 |
- |
- |
Cyclic creep |
12 |
60 |
0.6 |
0 |
0 |
106.2 |
106.2 |
107 |
107 |
|
|
|
12 |
0 |
0 |
150.1 |
150.1 |
150 |
150 |
|
|
|
19 |
0 |
0 |
247.1 |
247.1 |
246 |
246 |
|
|
|
39 |
0 |
0 |
274.1 |
274.1 |
274 |
274 |
|
|
|
12 |
10 |
10 |
206.2 |
206.2 |
207 |
207 |
|
|
|
12 |
30 |
30 |
293.6 |
293.6 |
294 |
294 |