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Which mechanism causes accelerated corrosion in dissimilar metals?

A)Galvanic corrosion increases oxidation rate
B)Crevice corrosion shields ion depletion
C)Pitting corrosion creates stress risers
D)Erosion corrosion removes passivation layers

💡 Explanation

Galvanic corrosion causes electron transfer from the more active metal’s oxidation, because it creates an electrochemical cell; therefore accelerated corrosion happens, rather than uniform surface attack, because of differences in the reduction potential.

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