Thermal-fatigue properties of coated materials for fusion device applications
The adherence of plasma sprayed coatings of TiC, VC, TiB/sub 2/ and B on substrates of Cu, 316 SS, Mo, Ta and Poco AXF-5Q artificial graphite has been evaluated in a pulsed electron beam, thermal fatigue environment. The materials are candidates for application as limiter and armor components of tokamak fusion devices. Up to 500 cycles of heating at power densities of 1.5 kW/cm/sup 2/ for 1.5 sec. were used. Materials were tested both in the as-sprayed (19 to 33% porosity) condition and after hot isostatic pressing (HIP) to increase coating density. Some (e.g. TiC on Mo and Ta) showed good survivability in both the as-sprayed and HIP densified conditions. TiB/sub 2/ on Mo and Ta and VC on Poco graphite were improved while TiC + V on Mo and Ta were degraded by the HIP treatment.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6180856
- Report Number(s):
- SAND-81-0230C; CONF-810831-21; ON: DE81028367; TRN: 81-015833
- Resource Relation:
- Conference: Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
COPPER
FATIGUE
GRAPHITE
LIMITERS
MATERIALS TESTING
MOLYBDENUM
STAINLESS STEEL-316
TANTALUM
BORON
COATINGS
ELECTRON BEAMS
SUBSTRATES
TITANIUM BORIDES
TITANIUM CARBIDES
TOKAMAK DEVICES
VANADIUM CARBIDES
ALLOYS
BEAMS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON
CARBON COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CLOSED PLASMA DEVICES
CORROSION RESISTANT ALLOYS
ELEMENTS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LEPTON BEAMS
MATERIALS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONMETALS
PARTICLE BEAMS
REFRACTORY METALS
SEMIMETALS
STAINLESS STEELS
STEELS
TESTING
THERMONUCLEAR DEVICES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM COMPOUNDS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360103 - Metals & Alloys- Mechanical Properties