image/svg+xml
resistance-to-crack-growth-by-strength-of-materials
WstFestEntw1engl
Relative operating stress
Calendar year
1
0.75
0.25
0.5
0
Astroloy
IN100
Waspaloy
INCO 901
J75
J58
TF30
F100
TF30-414
Resistance to crack growth
1980
1955
1960
1965
1970
1975
Resistance to
crack growth
Operating stress
Materials became increasingly stronger,
but the resistance to crack growth, and
therefore also the resistance to failure,
decreased at the same time.