Mechanical properties and failure of molybdenum-tungsten alloys at high temperatures
Journal Article
·
· Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)
OSTI ID:6154058
Temperature dependences of the mechanical properties and fracture mechanics of molybdenum-tungsten alloys produced by standard powder metallurgy methods were compared with similar data for technically pure tungsten produced by vacuum-arc melting with similar chemical composition to that of technically pure molybdenum. Strength and ductility were determined. Some of the consequences of this process were nucleation of recrystallization centers and the formation of microcracks. Polygonization was the critical stage in high-temperature deformation which determined the ductility and failure of the molybdenum-tungsten alloys.
- Research Organization:
- Institute of Strength Problems, Kiev (USSR)
- OSTI ID:
- 6154058
- Journal Information:
- Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), Journal Name: Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States) Vol. 26:10; ISSN SPMCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALLOYS
CARBIDES
CARBON
CARBON COMPOUNDS
CRYSTAL STRUCTURE
DEFORMATION
DUCTILITY
ELEMENTS
FAILURES
FRACTURE PROPERTIES
GRAIN BOUNDARIES
GRAIN SIZE
HARDNESS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALLURGICAL EFFECTS
METALS
MICROHARDNESS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NONMETALS
REFRACTORY METAL COMPOUNDS
SIZE
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN
TUNGSTEN ALLOYS
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALLOYS
CARBIDES
CARBON
CARBON COMPOUNDS
CRYSTAL STRUCTURE
DEFORMATION
DUCTILITY
ELEMENTS
FAILURES
FRACTURE PROPERTIES
GRAIN BOUNDARIES
GRAIN SIZE
HARDNESS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALLURGICAL EFFECTS
METALS
MICROHARDNESS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NONMETALS
REFRACTORY METAL COMPOUNDS
SIZE
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN
TUNGSTEN ALLOYS