The corrosion of magnesium in aqueous solution containing chloride ions |
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| Authors: | Reidar Tunold Hans Holtan May-Britt Hägg Berge Axel Lasson Rolf Steen-Hansen |
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| Affiliation: | Laboratories of Industrial Electrochemistry, University of Trondheim, Norwegian Institute of Technology, 7034-NTH Trondheim, Norway |
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| Abstract: | Measurements have been performed in order to relate different aspects of the corrosion of magnesium.Magnesium is shown to be a naturally passive metal that undergoes pitting corrosion when exposed to chloride ions in non-oxidizing solutions.By polarizing the metal in the negative direction an arrest on the current density/potential curve is found, probably corresponding to an activation potential. This potential determines the negative limit of the passive range.The “negative difference effect” is proposed to be a direct result of the breakdown of passivity. |
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