Experience with IN 939 as a hot corrosion resistant turbine vane material
Conference
·
· Am. Soc. Mech. Eng., (Pap.); (United States)
OSTI ID:6567756
For stationary gas turbine vanes IN 939 was evaluated very thoroughly in Europe as a promising hot corrosion resistant nickel base alloy. This paper shows examples of properties and behavior of IN 939 from literature and from actual application in stationary gas turbines. After long-term operation in stationary gas turbines vanes are analysed to show the type of oxide scale formation, the hot corrosion attack and phase stability. The alloy IN 939 exhibited excellent hot corrosion resistance under severe environmental conditions comparable to that of commercial hot corrosion protective coatings. Phases are described developed after casting and during heat treatment and sensitivity towards ..gamma..-phase formation is briefly discussed. Creep and fatique data of IN 939 are compared with IN 738 LC as well as the hot corrosion behavior.
- Research Organization:
- Brown, Boveri and Cie AG., Mannheim
- OSTI ID:
- 6567756
- Report Number(s):
- CONF-840611-
- Conference Information:
- Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-GT-297
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOY-IN-939
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CARBON ADDITIONS
CASTING
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CORROSION FATIGUE
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CREEP
FABRICATION
FATIGUE
GAS TURBINES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
MACHINERY
MATERIALS
MECHANICAL PROPERTIES
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHASE STABILITY
PROTECTIVE COATINGS
SCALING
STABILITY
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
TURBINE BLADES
TURBINES
TURBOMACHINERY
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS
200104 -- Fossil-Fueled Power Plants-- Components
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOY-IN-939
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CARBON ADDITIONS
CASTING
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CORROSION FATIGUE
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CREEP
FABRICATION
FATIGUE
GAS TURBINES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
MACHINERY
MATERIALS
MECHANICAL PROPERTIES
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHASE STABILITY
PROTECTIVE COATINGS
SCALING
STABILITY
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
TURBINE BLADES
TURBINES
TURBOMACHINERY
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS