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prbset054324 - parameters on the corrosion potential and...

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EMA 4324 Problem Set 5 5-1 [Jones 3-1] A zinc specimen exposed to an acid solution loses 25 milligrams during a 12 hour exposure. [a] What is the equivalent current flowing due to corrosion? [b] If the specimen area is 200 cm 2 , what is the corrosion rate [corrosion penetration rate (CPR)] in mils per year [mpy] due to this current? 5-2 [Jones 3-2] Using appropriate polarization diagrams, determine the effect of the following
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Unformatted text preview: parameters on the corrosion potential and corrosion rate of metal M corroding to M + in an acid solution: [a] increasing j o of the anodic reaction, [b] increasing j o of the cathodic reaction, [c] increasing the concentration of dissolved [H + ] and [d] increasing the Tafel constant for the anodic reaction....
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