Corrosion and Anodic Dissolution of Magnesium Alloys in the Presence of Inhibitor A. N. Kozlova,* T. N. Ostanina,* V. M. Rudoi,* E. N. Umrilova,* and V. B. Malkov** * Ural State Technical University–UPI, pr. Mira 19, Ekaterinburg, 620002 Russia E-mail:
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** Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 22, Ekaterinburg, 620219 Russia E-mail:
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Received June 17, 2007 Abstract — The effect of NTPS inhibitor on the corrosion behavior of magnesium alloys with various contents of alloying components is studied. NTPS is found to be an effective corrosion inhibitor in the absence of energizing, but under the anodic polarization, it does not produce any noticeable effect on the self-dissolution process. Comparative analysis of the processes proceeding at the anodic dissolution of magnesium and electronmicroscopic studies of the specimens showed that the dissolution is accelerated due to the active-surface development. A supposition that, under the effect of a constant anodic current, the development and formation of the magnesium surface relief takes place at the initial polarization stage is put forward. PACS numbers: 82.45. Bb DOI: 10.1134/S207020510901016X
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