Can someone please help me with these materials science questions? Detailed answ
ID: 1004975 • Letter: C
Question
Can someone please help me with these materials science questions? Detailed answers would highly be appreciated. Thanks.
A metal chain used to repeatedly raise and lower loads less than the yield strength of the chain metal fails and examination of the failed links shows considerable roughening at the failure site. What was the failure most likely due to and explain what types of inspection would ensure that this type of failure might be prevented? A gas turbine blade in a turbine that spins at high-speed fails and examination reveals no necking near the break. The fracture surface is relatively smooth but some other small cracks are observed at other locations on the crankshaft. What do you think happened?Explanation / Answer
a) Failure was most likely due to fatigue phenomenon. Continuos stress cycles lead to fatigue
b) The same happened here, fatigue it is (thermal fatigue)