Table 2:
The threshold values, ∆K
th
for the studied alloys at a load ratio of 0.1.
Alloy
8090 T651
2024 T351
7075 T351
7057 T651
7075 T7351
∆K
th
- Mpa m
0.5
5.8
4.3
4.2
3.1
2.2