Difference between galvanic series and emf series
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Both EMF and Galvanic series are based on thermodynamic analysis of potentials. The potential difference between two dissimilar metals is the driving force for galvanic corrosion. Despite of being the first recorded form of corrosion some 200 years ago, Galvanic corrosion continues to be one of the most commonly encountered engineering problems. The coupling of dissimilar metals will accelerate the failure of the anodic member. The acceleration factor is affected by the cathode to anode area ratio. Changes in temperature may cause potential reversal.
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