Number of delay cycles at a baseline ∆K of 10 Mpa m0.5.

Table 3: Number of delay cycles at a baseline ∆K of 10 Mpa m0.5.

Alloy	8090 T651	2024 T351	7075 T351	7057 T651	7075 T7351
N_d cycles	80000	20000	20000	6000	3000