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← ScienceWhich outcome occurs when dissimilar metals corrode underwater pipeline?
A)Accelerated corrosion near anodic regions✓
B)Reduced pipe roughness decreases flow
C)Increased metal electron migration reduces emf
D)Cathodic protection prevents material oxidation
💡 Explanation
Galvanic corrosion accelerates the attack through preferential electrochemical oxidation (Galvanic corrosion) at the higher-potential (anodic) metal, because there is formation of a electrochemical cells; therefore, pitting occurs rather than uniform loss, if protection is absent.
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