Corrosion protection of magnesium alloys polysulphide sealants

Bryk Ya. А., Еliseev O.A., Smirnov D.N.
UDC
678.026
DOI
10.18577/2307-6046-2017-0-10-10-10
Article PDF (Russian) (464.65 KB)
How to cite
Bryk Ya. А., Еliseev O.A., Smirnov D.N. Corrosion protection of magnesium alloys polysulphide sealants // Proceedings of VIAM. 2017. No. 10. DOI: 10.18577/2307-6046-2017-0-10-10-10. URL: https://test.viam.ru/en/journal/2017/10/10
Keywords
polysulfide rubber, thiokol, sealants, aggressive environment, adhesion, magnesium alloy, fuel, corrosion protection.
Abstract

Studied the protective properties of polysulfide sealants UT-32NT and VITEF-1NT on the samples of magnesian alloy MA8 after exposure to the tropical chamber during for 7 months, salt spray chamber during for 2 months, andML5 after fuel TS-1. It was found that, when working in an environment of air and tropical climate sealants VITEF-1NT or UT-32NT (film thickness of 1,5–2 mm) are suitable for protecting alloy MA8 oxidized as a sheet and in contact with the rivets on KFО-30 ground or sealant. Sealants VITEF-1NT or UT-32NT after exposure in the fuel TS-1, containing water in the form of a separate phase, have weak adhesion to a magnesian alloy of ML5 oxidized and do not protect it from corrosion.

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