Effect of chromuium, aluminum, and titanium on the corrosion resistance of nickel in molten sodium sulfate and chloride
Journal Article
·
· Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States)
OSTI ID:6122371
The author reports on a study whose purpose was to determine the corrosion of binary nickel alloys, containing aluminum, titanium and chromium, in molten sodium sulfate and chloride. The work was undertaken because under operating conditions, gas-turbine materials are subject to oxidation and high-temperature corrosion caused by contact with molten salt based on sodium sulfate formed during fuel combustion. It is concluded that: on alloying nickel with chromium, resistance to sulfide corrosion increases, but with aluminum and titanium it is reduced; alloying nickel with aluminum, titanium (up to 6-8 %) and chromium (up to 10-12 %) leads to an increase in its resistance to the action of molten sodium chloride; and, binary Ni-Al, Ni-Ti and ternary Ni-Al-Ti alloys have a lower corrosion resistance in sodium solfate than in sodium chloride.
- Research Organization:
- Institute of Casting Problems, Academy of Sciences of the Ukranian SSR, Kiev
- OSTI ID:
- 6122371
- Journal Information:
- Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States), Journal Name: Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States) Vol. 27:3; ISSN MHTRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360103* -- Metals & Alloys-- Mechanical Properties
ALKALI METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
BINARY ALLOY SYSTEMS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANCE
GAS TURBINES
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
MACHINERY
METALLURGICAL EFFECTS
MOLTEN SALTS
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDATION
OXYGEN COMPOUNDS
SALTS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
TURBINES
TURBOMACHINERY
360101 -- Metals & Alloys-- Preparation & Fabrication
360103* -- Metals & Alloys-- Mechanical Properties
ALKALI METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
BINARY ALLOY SYSTEMS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANCE
GAS TURBINES
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
MACHINERY
METALLURGICAL EFFECTS
MOLTEN SALTS
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDATION
OXYGEN COMPOUNDS
SALTS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
TURBINES
TURBOMACHINERY