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Special features of the electrochemical dissolution of a loaded surface of St20 steel

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Abstract

We established the influence of tensile stresses that vary from zero to 1.2 times theyield limit of the material on the intensity of electrochemical dissolution of St20 steel in corrosive media with various values of pH (3.6, 6.9, and 10.4). It is shown that the maximum intensification of dissolution is attained in processes of initiation and development of plastic yield in subsurface layers of the material. By the rotating disk electrode method, we analyzed samples of corrosive media and determined both the total yield of iron ions and the yield of each product of dissolution (Fe2+ and Fe3+ ions and their compounds).

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Authors
  1. I. M. Dmytrakh
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  2. O. A. Ezers'ka
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Additional information

Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, L'viv. Translated from Fiziko-Khimicheskaya Mekhanika Materialov, Vol. 30, No. 1, pp. 64–69, January–February, 1994.

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Dmytrakh, I.M., Ezers'ka, O.A. Special features of the electrochemical dissolution of a loaded surface of St20 steel. Mater Sci 30, 61–65 (1995). https://doi.org/10.1007/BF00559018

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  • DOI: https://doi.org/10.1007/BF00559018

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