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Some Features of the Local Depassivation of Binary Alloys Yu. I. Kuznetsov* and M. V. Rylkina** * Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991 Russia e-mail:
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** Udmurt State University, Universitetskaya ul. 1, Izhevsk, 426034 Russia e-mail:
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Received December 19, 2003 Abstract — Pitting resistances of Fe–Cr, Fe–Ni, Fe–B, Cu–Ni, and Cu–Zn binary alloys were studied. The effects of the composition and protective properties of a passive film, the phase composition of the alloy, and the nature and concentration of an activating anion were analyzed. It was demonstrated that the basic concepts of complexation are applicable to the depassivation of binary alloys in aqueous solutions.
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