What is stress corrosion cracking (SCC) and what conditions promote its development?
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A
Rapid surface oxidation caused by high-velocity airflow over exposed metal components
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B
Cracking that occurs when sustained tensile stress and a corrosive environment act simultaneously on a susceptible metal
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C
Fatigue cracking caused by repeated mechanical loading and vibration cycles alone
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D
Corrosion that forms exclusively around welded joints under elevated thermal stress