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Corrosion Fatigue vs. Stress Corrosion Cracking
2

Corrosion Fatigue vs. Stress Corrosion Cracking

Corrosion Fatigue vs. Stress Corrosion Cracking

(OP)
Hi all.

This is a continuation of a similar thread that I started...
(don't know how to insert a thread link)
 
Is there a difference between corrosion fatigue and stress corrosion cracking? - I am familiar, (thanks to you guys) with SCC.

Thanks in advance

tg

RE: Corrosion Fatigue vs. Stress Corrosion Cracking

trainguy;
yes. Generally speaking, corrosion fatigue in most metals can be characterized by crack propagation that is typically transgranular (thru grains) with minimal, if any, primary crack branching. You could possibly see corrosion products along the primary crack surface and near the crack tip.

SCC on the other hand typically exhibits noticeable crack branching with a crack path that can be either transgranular or intergranular (along grain boundaries).

RE: Corrosion Fatigue vs. Stress Corrosion Cracking

Additionally, corrosion fatigue is associated with cyclic stresses, while SCC can be caused by static stress.

Regards,

Cory

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RE: Corrosion Fatigue vs. Stress Corrosion Cracking

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