1. A nickel plate (with a geometrical dimension shown below) is being placed in an electrolyte. The corrosion current is measured to be 1.2 mA. How much of nickel will be lost within 4 hours? How much is the corrosion rate (in μg/cm2/day and in mpy)?

1. A nickel plate (with a geometrical dimension shown below) is being placed in an electrolyte. The corrosion current is measured to be 1.2 mA. How much of nickel will be lost within 4 hours? How much is the corrosion rate (in ug/cm2/day and in mpy)? (score: 50) 0.75 cm 3 cm 1.5 cm 2. Let's assume you are a new corrosion engineer at PT. Pertamina, and your supervisor shows you a list of measured thickness data of a vessel as follow: Date Thickness Feb 2008 0.6 inch June 2012 0.592 inch Nov 2015 0.467 inch Mar 2020 0.421 inch The company has specified that the minimum allowed thickness of the vessel is 0.4 inch. Now, you are asked to estimate how much is the remaining life of the vessel? And when the next inspection date has to be done to the vessel? (note: inspection interval is half-of life according to API 510 standard)