Pitting on the 20Kh13 steel in chloride solutions |
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| Authors: | A D Davydov V S Shaldaev G R Engel’gardt |
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| Institution: | (1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia;(2) OLI Systems, Inc., Morris Plain, NJ, USA |
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| Abstract: | The dependences of the pitting potential, determined by potentiodynamic method, on the NaCl solution concentration, pH, and temperature are found. The repassivation potential and the induction time for the pitting under different conditions are determined. The corrosion potential and kinetic parameters of the steel dissolution in pits are measured. The corrosion current is evaluated, leading to the determination of the steel dissolution rate in pits at the corrosion potential. |
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| Keywords: | passive state distortion pitting corrosion pitting potential repassivation potential induction time corrosion potential corrosion current |
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