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what kind of process can cause this failure in EN process?

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fusitexa

Materials
Joined
Aug 4, 2011
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44
Location
HK
i am wondering what can make this happen, the substrate is SAE1008.
thanks.
 
You don't give us much to go on. Without further details/photos/SEM shots, all I can offer is that the area is question is a fatigue crack. Kind of hard to tell if it started from a corrosion pit or some other feature. What are the details of the failure? What is the material?
 
Not enough information as to component function, service conditions and material.
 
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