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Comparative study of the effect of lanthanum and scandium additives on anodic characteristics of AK1 alloy based on special-purity aluminum

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Abstract

Potentiostatic method was used to study the corrosion-electrochemical properties in a 3% NaCl electrolyte of an AK1 alloy modified with lanthanum and scandium. It was found that the lanthanum and scandium additives positively affect the corrosion resistance of the AK1 alloy in the NaCl electrolyte. For example, the additives reduce the anodic corrosion rate of the alloy by 3.6 × 10–4 to 0.97 × 10–4 g m–2 h–1. Upon alloying of the alloy, the pitting and corrosion potentials are shifted into the positive region, which indicates that alloys containing lanthanum and scandium become more pitting corrosion resistant.

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Authors and Affiliations

  1. Nikitin Institute of Chemistry, Academy of Sciences of the Republic of Tajikistan, ul. Aini 299/2, Dushanbe, 734063, Tajikistan

    A. E. Berdiev & I. N. Ganiev

  2. Osimi Tajik Technical University, ul. Akademikov Radzhabovykh 10, Dushanbe, 734042, Tajikistan

    Kh. Kh. Niezov

  3. State Research and Development and Production Institution, Academy of Sciences of the Republic of Tajikistan, ul. Aini 299, Dushanbe, 734063, Tajikistan

    B. B. Eshov

Authors
  1. A. E. Berdiev
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  2. I. N. Ganiev
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  3. Kh. Kh. Niezov
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  4. B. B. Eshov
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Corresponding author

Correspondence to A. E. Berdiev.

Additional information

Original Russian Text © A.E. Berdiev, I.N. Ganiev, Kh.Kh. Niezov, B.B. Eshov, 2015, published in Zhurnal Prikladnoi Khimii, 2015, Vol. 88, No. 6, pp. 887-891.

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Berdiev, A.E., Ganiev, I.N., Niezov, K.K. et al. Comparative study of the effect of lanthanum and scandium additives on anodic characteristics of AK1 alloy based on special-purity aluminum. Russ J Appl Chem 88, 957–961 (2015). https://doi.org/10.1134/S1070427215060105

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  • DOI: https://doi.org/10.1134/S1070427215060105

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