The effect of protective coatings on the high temperature properties of a gamma prime-strengthened Ni-base superalloy
Journal Article
·
· Metall. Trans., A; (United States)
This study examined the influence of chrome-aluminide coatings on the creep and stress rupture properties of wrought Udimet-520 used in gas turbine blade applications. Creep and stress rupture tests were conducted at 802/sup 0/C (1475/sup 0/F) on coated and uncoated wrought bars in the fully heat treated condition. Coatings caused a deterioration in rupture strength and ductility. Masking procedures used to protect the blade roots during coating also affected rupture strength or rupture ductility. Mechanical behavior in the coated creep resistant alloy correlated with microstructure and discussed in terms of possible controlling processes.
- Research Organization:
- Westinghouse Canada Inc., Hamilton, Ontario
- OSTI ID:
- 6463362
- Journal Information:
- Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 15A:1; ISSN MTTAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
COATINGS
COBALT ALLOYS
CREEP
CRYSTAL STRUCTURE
DEPOSITION
DESTRUCTIVE TESTING
FAILURES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
MASKING
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
PROTECTIVE COATINGS
RUPTURES
STRESSES
SURFACE COATING
TESTING
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TURBINE BLADES
UDIMET ALLOYS
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
COATINGS
COBALT ALLOYS
CREEP
CRYSTAL STRUCTURE
DEPOSITION
DESTRUCTIVE TESTING
FAILURES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
MASKING
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
PROTECTIVE COATINGS
RUPTURES
STRESSES
SURFACE COATING
TESTING
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TURBINE BLADES
UDIMET ALLOYS