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Composition and morphology of hot-salt corrosion in heat resistant nickel alloys
https://doi.org/10.22349/1994-6716-2021-105-1-107-115
Abstract
This article investigates the change in the structure of heat-resistant nickel alloys doped with cobalt, chromium, molybdenum, aluminum, niobium, tungsten and titanium and aluminum, cobalt, rhenium, tantalum, ruthenium, molybdenum, tungsten and chromium under the influence of a solution of 75% Na2SO4 + 25% NaCl in temperature range 600–750°C. As the results of the study show, a corrosive film of a layer struc- ture based on oxides of chromium, aluminum, nickel and nickel sulfides is formed on the metal surface. It has been established that the nature of corrosion destruction of metal depends on the composition and content of alloying elements in it.
About the Authors
D. A. Movenko
All-Russian Scientific Research Institute of Aviation Materials (FSUE VIAM)
Russian Federation
Russian Federation
Movenko D. A., Cand Sc. (Eng)
17 Radio St, 105005 Moscow
A. B. Laptev
1All-Russian Scientific Research Institute of Aviation Materials (FSUE VIAM)
Russian Federation
Russian Federation
Laptev A. B., Dr Sc (Eng)
17 Radio St, 105005 Moscow
O. A. Zagorskykh
UEC-Perm Engine
Russian Federation
Russian Federation
Zagorskykh O. A.
93 Komsomolsky Ave, 614010, Perm
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Review
For citations:
Movenko D.A., Laptev A.B., Zagorskykh O.A. Composition and morphology of hot-salt corrosion in heat resistant nickel alloys. Voprosy Materialovedeniya. 2021;(1(105)):107-115. (In Russ.) https://doi.org/10.22349/1994-6716-2021-105-1-107-115
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