FUNDAMENTAL AND APPLIED RESEARCH AND DEVELOPMENT IN METALLURGY. Progress Report for February 1960

Technical Report · Fri May 20 04:00:00 EDT 1960

OSTI ID:4155363

Extrusion cladding experiments involving U-UC core material clad with Be were initiated. Research on U-UC alloys of varying carbon content was continued. In glowdischarge experiments, vacuum fusion and mass spectrometry were used to determine the concentration of krypton gas introduced into metal specimens. Data from vacuumfusion runs and mass spectrograph analysis are tabulated. A second cyclotron irradiation was performed on rolled ingot and dingot uranium and uranium - molybdenum alloys. Several post-irradiation treatments are outlined. Photomicrographs showing helium bubble bands in these specimens are included. Investigation of the stability of the retained beta phase in uranium-base alloys which were homogenized at 720 deg C for 24 hours is reported. Data on the phases presert after treatment are included. Thermal analyses of binary beryllium alloys were continued. Included were tests on alloys of beryllium - palladium, beryllium -platinum, beryllium - vanadium, and beryllium - niobium. Elevated- temperature x-ray-diffraction studies of beryllium --nickel alloys were continued. Investigations of the kinetics of precipitation in rods fabricated from beryllium powder were continued. Results and tentative conclusions are included. Investigation of isotopic interchange in dispersion-type: fuel elements was continued. Metallographic examination of a U-UC couple which had been heat treated at 975 deg C for 96 hours showed no evidence of the interaction. Metallographic examination of the surface of UO/sub 2/ crystals deformed in compression at 1000 deg C to a total strain of 2.8% showed possible deformation traces such as {1 1 1}, {1 1 0}, and {1 1 3} in addition to kinking. (For preceding period see NMI-2083.) (J.R.D.)

• Research Organization: Nuclear Metals, Inc., Concord, Mass.
• NSA Number: NSA-14-015900
• OSTI ID: 4155363
• Report Number(s): NMI-2084
• Country of Publication: United States
• Language: English

Related Subjects

BERYLLIUM ALLOYS-- DIFFRACTION-- HIGH TEMPERATURE-- NICKEL ALLOYS-- X RADIATION
BERYLLIUM ALLOYS-- MATERIALS TESTING-- NIOBIUM ALLOYS- - PALLADIUM ALLOYS-- PHASE DIAGRAMS-- PLATINUM ALLOYS-- VANADIUM ALLOYS
BERYLLIUM-- CARBIDES-- CARBON-- EXTRUSION-- FUEL CANS-- GLOW DISCHARGES-- KRYPTON-- LATTICES-- MASS SPECTROMETERS-- MELTING-- METALLOGRAPHY-- QUANTITY RATIO-- URANIUM ALLOYS-- VACUUM
BERYLLIUM-- FABRICATION-- POWDERS-- PRECIPITATION-- REACTION KINETICS-- RODS
BUBBLES-- HELIUM-- METALLOGRAPHY-- MICROSCOPY
CARBIDES-- HEAT TREATMENTS-- INTERACTIONS-- METALLOGRAPHY-- URANIUM ALLOYS-- URANIUM COMPOUNDS
CRYSTALS-- DEFORMATION-- HIGH TEMPER
METALS, CERAMICS, AND OTHER MATERIALS