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METALLURGY DIVISION QUARTERLY PROGRESS REPORT FOR PERIOD ENDING APRIL 30, 1952

Technical Report ·
DOI:https://doi.org/10.2172/4312294· OSTI ID:4312294

Thorium Research. The effect of quenching temperature on the hardness of Th--C alloys is described. The effect of quenching temperature and oxygen content on the hardness of Th--O, alloys is discussed. The effects of Be, Cr, and C additions on the properties of pure Th are described. The mechanical properties, recrystallization, and fabrication of Th are given. Preferred Orientation of Uranium. Fabricating conditions, preferred orientation, and examination of alpha-extruded U rods are given. The creep rate of beta-treated normal U and of extruded Th is given. Properties of some high-temperature brazing alloys are given. Welding conditions are given for cone-arc welding of stainless steel tube-to-header joints. Homogeneous Reactor Program. Analysis of various compacts containing B/sub 4/C are given. Preliminary work on the variables involved in welding Ti was started. Experimental work to determine the effects of various impurity elements on the impact properties of Ti and Zr was started. A metallographic examination of Ames Th cold worked and annealed for 60 minutes is presented. Experimental Plate-Cladding Program. The cladding of Th and U with Zr is discussed at length. The cladding of Th with Al is described. Experiments on welding of Th, U, and Zr plates are presented. (W.L.H.)

Research Organization:
Oak Ridge National Lab., Tenn.
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-26
NSA Number:
NSA-12-005383
OSTI ID:
4312294
Report Number(s):
ORNL-1302(Del.)
Country of Publication:
United States
Language:
English

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Related Subjects

ALLOTROPY
ALLOYS
ALUMINUM
ANNEALING
BERYLLIUM ALLOYS
BORON CARBIDES
BRAZING
CANNING
CARBIDES
CHROMIUM ALLOYS
COLD WORKING
COMPACTING
CREEP
CRYSTALS
ELECTRIC ARCS
EXTRUSION
FABRICATION
HARDNESS
HEAT TREATMENTS
HIGH TEMPERATURE
HOMOGENEOUS REACTORS
IMPACT SHOCK
IMPURITIES
JOINTS
MECHANICAL PROPERTIES
METALLOGRAPHY
MINERALOGY, METALLURGY, AND CERAMICS
OXYGEN
PLATES
QUANTITY RATIO
REACTORS
RECRYSTALLIZATION
RODS
STAINLESS STEELS
THORIUM
THORIUM CARBIDES
THORIUM OXIDES
TITANIUM
TUBES
URANIUM
WELDING
ZIRCONIUM