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

Technical Report · Wed Feb 01 04:00:00 EST 1961

OSTI ID:4080355

Hot extrusicn of stainless-steel-clad UO/sub 2/ rods 40 to 44 in. long is reported. Attempts st forming spiral and ribbon candy fuel elements from plates of clad fuel material are described. A flat sheet, with dimples for spacing between spirals, was wrapped around a mandrel with moderate success. Ribbon candy configurations were forged of dimpled plate into a zig-zag shape, then the bends were continued until the sides of the vees became parallel. The technique was satisfactory. Extrusion of unclad cast yttrium from a 6.05-in. liner through a 2.015-in. die was performed, then 1.995-in billets were reduced to 0.400 in. Studies were also made of the swaging behavior of extruded yttrium. The microstructure of the extruded material is described. Progress in U/sup 233/ recycle processing is described. Results of metallographic examinaticns of metastable beta -phase uraniumbase alloys in various conditions prior to irradiation tests are given. Hydrostatic fabrication studies continued with attempts to extrude a copper billet in molten lead at 900 deg F. Data from the study of zirconium alloy corrosion include pressure-composition isotherms at 680 deg C for H/sub 2/ and Zr, ZrMo/sub 2/, Zr/sub 2/Cu, ZrFe/sub 2/, Zr/sub 2/Ni, ZrCr/sub 2/, ZrSn/sub 2/, ZrW/sub 2/, ZrAl /sub 2/, and Zr/sub 2/Fe. Beryllium research produced thermal effects data from the second cycle through the phase transformations for Be--Co--Fe--Ni, Be--Co--Ni with Mn, and Be--Ni with Cu. (For preceding period see NMI-2091.) (T.R.H.)

• Research Organization: Nuclear Metals, Inc., Concord, Mass.
• NSA Number: NSA-15-011454
• OSTI ID: 4080355
• Report Number(s): NMI-2092
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM
BERYLLIUM
BERYLLIUM ALLOYS
CHROMIUM
COBALT ALLOYS
COPPER
CORROSION
EXTRUSION
FABRICATION
FUEL CANS
HYDROGEN
INTERMETALLIC COMPOUNDS
IRON
IRON ALLOYS
LEAD
LIQUID METALS
MANGANESE
METALLOGRAPHY
METALLURGY
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM
NICKEL
NICKEL ALLOYS
PRESSURE
RODS
ROLLING
STAINLESS STEELS
TENSILE PROPERTIES
TIN
TUNGSTEN
URANIUM 233
URANIUM ALLOYS
URANIUM DIOXIDE
YTTRIUM
ZIRCONIUM
ZIRCONIUM ALLOYS