Erosion and fatigue behavior of coated titanium alloys for gas turbine engine compressor applications. Final report
Technical Report
·
OSTI ID:7343357
The erosion and fatigue behavior of several potentially protective coatings for reducing the severity of sand erosion degradation of titanium alloys was studied. The coatings can be ranked in the following order of decreasing merit incorporating erosion indices at 30, 60, and 90 degrees impingement: titanium carbonitride (nickel interlayer); titanium diboride (nickel interlayer); boron carbide; diffusion-bonded electroless nickel plus overlay of chromium; diffusion-bonded electroless nickel; and plasma-sprayed boron. All coatings caused fatigue strength reductions of between 22% and 80%. Shot peening reduced fatigue degradation in some cases. (GRA)
- Research Organization:
- Army Materials and Mechanics Research Center, Watertown, Mass. (USA)
- OSTI ID:
- 7343357
- Report Number(s):
- AD-A-022344; AMMRC-TR-76-4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALLOYS
BORIDES
BORON
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
COATINGS
COMPARATIVE EVALUATIONS
ELEMENTS
EROSION
FATIGUE
MECHANICAL PROPERTIES
METALS
NICKEL
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
PROTECTIVE COATINGS
SEMIMETALS
TITANIUM ALLOYS
TITANIUM BORIDES
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360105* -- Metals & Alloys-- Corrosion & Erosion
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALLOYS
BORIDES
BORON
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
COATINGS
COMPARATIVE EVALUATIONS
ELEMENTS
EROSION
FATIGUE
MECHANICAL PROPERTIES
METALS
NICKEL
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
PROTECTIVE COATINGS
SEMIMETALS
TITANIUM ALLOYS
TITANIUM BORIDES
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS