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Calculate the corrosion penetration rate of iron that corroding at an electrochemical corrosion rate of 1 microampere/sq. centimeters?

Calculate the corrosion penetration rate of iron that corroding at an electrochemical corrosion rate of 1 microampere/sq. centimeters? Correct Answer 0.46 mpy

Corrosion penetration rate = K (ai/nD) a = atomic weight of iron = 55.8 g i = current density = 1 micrometer/sq. Centimeters n = valency change = 2 D = density of iron = 7.86 g/cm3 K = 0.129 for steel Corrosion penetration rate = 0.129 * = 0.46 mpy.

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