Salt deposits in gas turbines and their effect on corrosion

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Prot. Met. (Engl. Transl.); (United States)

OSTI ID:5801766

Oryshich, I V; Bogaevskii, V V

A study has been made of the composition of deposits on the blades of marine engines run on diesel and turbine fuel, and also in a gas dynamic test bench in the products of fuel combustion. Deposits on blade surfaces were metal oxides and sulfates with an admixture of sodium chloride, and in the second case there were also vanadium oxides. Sodium chloride is mainly deposited in blade cooling channels, entering from sea water together with the intake air. The individual and combined effect of salts and vanadium pentoxide on the high-temperature corrosion of nickel alloys EP958VD and ZhS6F at temperatures from 700 to 950/sup 0/C and a duration of 50 h has been studied. It has been established that magnesium and calcium sulfates reduce the corrosivity of sodium sulfate, but sodium chloride and vanadium pentoxide increases it.

• OSTI ID: 5801766
• Journal Information: Prot. Met. (Engl. Transl.); (United States), Journal Name: Prot. Met. (Engl. Transl.); (United States) Vol. 23:1; ISSN PTNMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
COMBUSTION PRODUCTS
CORROSION
CORROSION INHIBITORS
CORROSIVE EFFECTS
CRYSTAL STRUCTURE
DEPOSITS
DIESEL FUELS
DIFFRACTION
ENGINES
GAS TURBINE ENGINES
HALIDES
HALOGEN COMPOUNDS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
MATERIALS TESTING
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
SCALING
SCATTERING
SEAWATER
SHIPS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
TURBINE BLADES
VANADIUM COMPOUNDS
VANADIUM OXIDES
WATER
X-RAY DIFFRACTION