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Kinetics of inhibition of aluminum corrosion in hydrogen chloride electrolytes with binary salt mixtures

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Abstract

The kinetics of inhibition of aluminum corrosion with SnCl2, CdCl2, PbCl2, and their equimolar binary mixtures was studied under contact exchange conditions. Prerequisites for synergism in these mixtures were determined. The parameter γ of mutual influence of the components in the mixture was formally separated into the constituents associated with changes in the aluminum surface coverage with the contact deposit, γs, and in the free corrosion potential of aluminum, γΔE . In the mixtures studied, γs > 1, while γΔE < 1; however, the overall effect is synergism because γs > 1/γΔE .

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Authors and Affiliations

  1. Research Institute of Physical and Organic Chemistry, pr. Stachki 194/2, Rostov-on-Don, 344090, Russia

    O. I. Barteneva

  2. Rostov State University, ul. Bol’shaya Sadovaya 105, Rostov-on-Don, 344007, Russia

    V. V. Bartenev

Authors
  1. O. I. Barteneva
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  2. V. V. Bartenev
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Original Russian Text © O.I. Barteneva, V.V. Bartenev, 2006, published in Zashchita Metallov, 2006, Vol. 42, No. 5, pp. 532–538.

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Barteneva, O.I., Bartenev, V.V. Kinetics of inhibition of aluminum corrosion in hydrogen chloride electrolytes with binary salt mixtures. Prot Met 42, 491–497 (2006). https://doi.org/10.1134/S0033173206050080

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  • DOI: https://doi.org/10.1134/S0033173206050080

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