Metallurgical progress report No. 23, April 1-June 30, 1964. [Fe-Cr-Gd]
Technical Report
·
OSTI ID:6141847
The determination of selected properties of Fe-Cr-Gd alloys containing 12, 18, 24, and 30 wt % Cr and up to 5 wt % Gd was completed. Recent improvements in hafnium carbide casting technology include a new mold design which has permitted the preparation of tensile bars. The determination of electrical resistivity, linear expansion, nitrogen reactivity, and shock resistance properties of sections from hafnium carbide ingots, containing free graphite, to elevated temperatures was completed. Progress in the determination of the three binary phase diagrams for thorium with praseodymium, neodymium, and holmium is reviewed and new data are indicated. Of numerous preliminary designs for induction melting reactive metals in a cold-mold crucible, one variation shows considerable promise. Green body fabrication methods have been satisfactorily developed and progress has been made in the refinement of techniques used in the study of the subliquidus phase relationships for the UC-UN-UO system. Efforts have centered on the examination of compositions of the UC-UO and UN-UO binary systems. The study of the thermodynamics of the cold-mold in arc melting was concluded with a series of experiments with larger scale (8-inch-diameter) crucibles. Vacuum arc melting and skull-casting equipment were developed which permit production of conventional cold-mold ingots and vertical-axis centrifugal skull-castings of tungsten-25 rhenium tubing.
- Research Organization:
- Albany Metallurgy Research Center, OR (USA)
- OSTI ID:
- 6141847
- Report Number(s):
- USBM-RC-1122; ON: DE85002849
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360000* -- Materials
ACTINIDE ALLOYS
ACTINIDE COMPOUNDS
ALLOYS
CARBIDES
CARBON COMPOUNDS
CASTING
CHALCOGENIDES
CHROMIUM ALLOYS
CORROSION RESISTANCE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPANSION
FABRICATION
GADOLINIUM ALLOYS
HAFNIUM CARBIDES
HAFNIUM COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MELTING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PNICTIDES
RARE EARTH ALLOYS
REFRACTORY METAL COMPOUNDS
RESEARCH PROGRAMS
RHENIUM ALLOYS
TENSILE PROPERTIES
THERMAL EXPANSION
THORIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TUBES
TUNGSTEN ALLOYS
URANIUM CARBIDES
URANIUM COMPOUNDS
URANIUM NITRIDES
URANIUM OXIDES
360000* -- Materials
ACTINIDE ALLOYS
ACTINIDE COMPOUNDS
ALLOYS
CARBIDES
CARBON COMPOUNDS
CASTING
CHALCOGENIDES
CHROMIUM ALLOYS
CORROSION RESISTANCE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPANSION
FABRICATION
GADOLINIUM ALLOYS
HAFNIUM CARBIDES
HAFNIUM COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MELTING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PNICTIDES
RARE EARTH ALLOYS
REFRACTORY METAL COMPOUNDS
RESEARCH PROGRAMS
RHENIUM ALLOYS
TENSILE PROPERTIES
THERMAL EXPANSION
THORIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
TUBES
TUNGSTEN ALLOYS
URANIUM CARBIDES
URANIUM COMPOUNDS
URANIUM NITRIDES
URANIUM OXIDES