High-temperature corrosion of titanium alloys (review)

Zavarzin S.V., Duyunova V.A., Fomina M.A.
UDC
620.193:669.295
DOI
10.18577/2307-6046-2023-0-4-27-39
Article PDF (Russian) (842.12 KB)
How to cite
Zavarzin S.V., Duyunova V.A., Fomina M.A. High-temperature corrosion of titanium alloys (review) // Proceedings of VIAM. 2023. No. 4. DOI: 10.18577/2307-6046-2023-0-4-27-39. URL: https://test.viam.ru/en/journal/2023/4/3
Keywords
titanium, high-temperature corrosion, hot corrosion, sulfide-oxide corrosion, sodium sulfate, sodium chloride
Abstract

Titanium alloys often have an advantage over steel in terms of weight and corrosion-resistant characteristics. However, their use in the «hot» parts of gas turbines is limited by the low maximum operating temperature, which is due to their corrosive behavior in the high-temperature region. The paper analyzes the main mechanisms proposed to describe the corrosion behavior of titanium alloys in the main environments typical for the operation of gas turbines. The determining role of titanium in these processes is shown, which limits the possibilities of alloying alloys.

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