High-temperature properties of particle-strengthened W-Re
- Arizona State Univ., Tempe, AZ (US)
In recent years there has been renewed interest in the development of tungsten alloys for space power and advanced aerospace propulsion systems. This paper discusses how tungsten alloys have great potential for ultrahigh-temperature applications because of their thermal capabilities and exceptional high-temperature mechanical properties. Recent investigations of second-phase particle-strengthened W-Re alloys show that fine HfC and ThO{sub 2} particles significantly improve the high-temperature tensile and creep properties of tungsten alloys. The superior high-temperature strengths of these alloys above 2,000 K are attributed to the strong interaction between these second-phase particles and dislocations as well as excellent stability of these particles.
- OSTI ID:
- 6457744
- Journal Information:
- JOM (1989); (USA), Journal Name: JOM (1989); (USA) Journal Issue: 8 Vol. 42:8; ISSN JOMME; ISSN 1047-4838
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330000 -- Advanced Propulsion Systems
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360104 -- Metals & Alloys-- Physical Properties
ACTINIDE COMPOUNDS
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL COMPOSITION
CREEP
ELEMENTS
HAFNIUM CARBIDES
HAFNIUM COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
METALS
MOBILE REACTORS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
OXIDES
OXYGEN COMPOUNDS
POWER REACTORS
PROPULSION REACTORS
REACTORS
REFRACTORY METAL COMPOUNDS
RHENIUM
SPACE POWER REACTORS
SPACE PROPULSION REACTORS
SPACE VEHICLES
TENSILE PROPERTIES
TESTING
THORIUM COMPOUNDS
THORIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN ALLOYS
VEHICLES