In Wohler’s Fatigue test, how many cycles can cast iron to be subjected to before failure?

In Wohler’s Fatigue test, how many cycles can cast iron to be subje

1.	In Wohler’s Fatigue test, how many cycles can cast iron to be subjected to before failure?
A.	10,000,000
B.	100,000,000
C.	5,000,000
D.	1,000,000
Answer» B. 100,000,000