Formation of the composite polymercontaining coatings on St3 steel using cold gasdynamic spraying technology

Authors

  • Andrey S. Gnedenkov Institute of Chemistry, FEB RAS, Vladivostok, Russia
  • Aleksei D. Nomerovskii Institute of Chemistry, FEB RAS, Vladivostok, Russia
  • Alexander K. Tsvetnikov Institute of Chemistry, FEB RAS, Vladivostok, Russia
  • Sergey L. Sinebryukhov Institute of Chemistry, FEB RAS, Vladivostok, Russia
  • Sergey V. Gnedenkov Institute of Chemistry, FEB RAS, Vladivostok, Russia

Keywords:

cold gas dynamic spraying, protective coatings, fluoropolymers, steel, electrochemistry

Abstract

The paper presents the results of studying the properties of composite coatings formed by the cold spraying technique on St3 carbon construction steel. As a result of the research, it was found that the introduction of super dispersed polytetrafluoroethylene into the composition of the coating increases the corrosion resistance of the basic copper-zinc coating. Analysis of the electrochemical tests results shows that the sample with the coating formed by spraying the copper-zinc particles and subsequent treatment with friction-applied SPTFE has a high corrosion protection. The best anticorrosion properties were revealed for the coating obtained with more processing steps, namely, with a sprayed base coating annealed at 500 ℃ for 1 h, with SPTFE applied by friction method and re-annealed at 350 ℃ for 1 hour. Corrosion current density Ic of such coatings is 25 times lower than the value of this parameter for the base copper-zinc coating.

Author Biographies

Andrey S. Gnedenkov, Institute of Chemistry, FEB RAS, Vladivostok, Russia

Professor of RAS, Doctor of Sciences in Chemistry Leading Researcher 

http://orcid.org/0000-0002-9822-7849

Aleksei D. Nomerovskii , Institute of Chemistry, FEB RAS, Vladivostok, Russia

Junior Researcher 

http://orcid.org/0000-0002-3118-5971

Alexander K. Tsvetnikov, Institute of Chemistry, FEB RAS, Vladivostok, Russia

Candidate of Sciences in Chemistry Senior, Researcher

http://orcid.org/0000-0001-5296-8003

Sergey L. Sinebryukhov, Institute of Chemistry, FEB RAS, Vladivostok, Russia

Corresponding Member of the Russian Academy of Sciences,

Doctor of Sciences in Chemistry, Deputy Director

http://orcid.org/0000-0002-0963-0557

Sergey V. Gnedenkov, Institute of Chemistry, FEB RAS, Vladivostok, Russia

Corresponding Member of the Russian Academy of Sciences,

Doctor of Sciences in Chemistry Director

http://orcid.org/0000-0003-1576-8680

Downloads

Published

2022-12-07

How to Cite

Gnedenkov А. С., Nomerovskii . А. Д., Tsvetnikov А. К., Sinebryukhov С. Л., & Gnedenkov С. В. (2022). Formation of the composite polymercontaining coatings on St3 steel using cold gasdynamic spraying technology. Vestnik of the Far East Branch of the Russian Academy of Sciences, (6), 35–45. Retrieved from http://vestnikdvo.ru/index.php/vestnikdvo/article/view/1019

Issue

No. 6 (2022)

Section

Physicochemistry of surface and nanosized systems