The implication of powder mixture composition and heat treatment duration on the properties of thermal diffusion aluminium-zinc coating

Sofronova D.A., Yaroshevskaya V.N., Koltsova M.А., Lonskii S.L., Knyazev A.V., Kurshev E.V.
UDC
629.7.023.22
DOI
10.18577/2307-6046-2025-0-12-126-136
Article PDF (Russian) (941.69 KB)
How to cite
Sofronova D.A., Yaroshevskaya V.N., Koltsova M.А., Lonskii S.L., Knyazev A.V., Kurshev E.V. The implication of powder mixture composition and heat treatment duration on the properties of thermal diffusion aluminium-zinc coating // Proceedings of VIAM. 2025. No. 12. DOI: 10.18577/2307-6046-2025-0-12-126-136. URL: https://test.viam.ru/en/journal/2025/12/11
Keywords
thermodiffusion coatings, zinc, aluminium, steel, corrosion, protective coatings
Abstract

The influence of the composition of the powder mixture and of the heat treatment modes upon the formation of thermodiffusional aluminium-zinc coatings has been investigated. It was found that at a temperature of 450°С the coatings have aluminium based outer layer, at a temperature of 380 °С the aluminum content in the zinc is about 10 %. The obvious influence of the composition of the mixture and of the heat treatment regime on the corrosion properties has not been established, the corrosion current is in the order of 10–6 А/cm2, and the corrosion potential is about 0,9 V in 3 % NaCl solution.

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