Corrosion Protection of Materials

Aluminum Alloy Corrosion Inhibition by Sodium Alginate in 0.1% NaCl Solution

Natalia Sobodosh (natkasobodosh@gmail.com)1, Andriy Bania2

1. Karpenko Physico-Mechanical Institute of NAS of Ukraine
2. Lytvynenko Institute of Physical-Organic Chemistry and Coal Chemistry of NAS of Ukraine

https://doi.org/10.15407/msse2023.159

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Keywords

aluminum alloy, corrosion inhibition, sodium alginate, potentiodynamic polarization, electrochemical impedance spectroscopy

Abstract

The high efficiency of the environmentally safe polysaccharide sodium alginate as an inhibitor of aluminum alloy corrosion in a 0.1% NaCl solution was established. The protective action of the alginate consists in inhibiting the cathodic reaction of electrochemical corrosion due to the formation of an organic protective film on the surface of intermetallic inclusions of the alloy.

References

  1. Tymus М., Zin І., Khlopyk О., Pokhmurskii V., Holovchuk M. and Korniy S. Corrosion inhibition of aluminum alloy by a composition of guar gum and tartrate // Mater. Sci. – 2022. – 57, №. 5. – Р. 679-687. https://doi.org/10.1007/s11003-022-00595-w
  2. Korniy S., Zin I., Tymus M., Khlopyk O., Holovchuk M. Steel corrosion inhibition by microbial polysaccharide and tartrate mixture // J. Bio- Tribo-Corros. – 2022. – 8, № 6. – P.1-8. https://doi.org/10.1007/s40735-021-00605-5