A piece of corroded steel plate was found in submerged ocean vessel. It was estimated that the area of plate to be ~38 inch 2, and weight loss due to corrosion was 1.9 Kg. Assuming a corrosion rate of 120 mpy for this steel in seawater, estimate the of submersion time in years for this steel plate?

3.2 years

Explanation:

The corrosion penetration rate (CPR) is given by:

Given that:

CPR = 120 mpy, W = 1.9 kg = 1900 g, density of steel = 7.9 g/cm³, A = 38 in², K = 534 (for 10⁻³ in per year),

Substituting:

answer:

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explanation:

answer:

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explanation: