FUNDAMENTAL AND APPLIED RESEARCH AND DEVELOPMENT IN METALLURGY. Progress Report for January 1959
Beryllium Metallurgy. A small test program is under way to determine some of the characteristics of coextruded Be-clad U-2 wt.% Zr fuel elements. In an effort to ascertain exactly what happens when extruded and cross-rolled material is rolled at reductions in area 60: 1, a Be single crystal has been rolled at a 12% reduction in Area at 1000 deg C. Uranium Metallurgy. Experiments to determine the reproducibility of Growth Index (GI) determinations were conducted. To determine the texture of as-cast ingot U billet, three one-inch diameter transverse x-ray samples were excised from the whole cross section of the three-inch diameter billet. Extrusions of two alloys having the nominal composition of Zr--3Mo--22Al and Zr--5Mo--2Al were carried out. The arc melting and induction melting of cast Th 5 to 15 wt.%--U alloy slugs is reported. A study of the effect of an interdiffusion heat treatment, and of subsequent heat treatments, upon the corrosion behavior of Zircaloy-2 clad U 2 wt.%-- Zr containing artificial defects is reported. Studies of methods of fabrication of U tube, wire, and sheet are presented. Bonding experiments were conducted on V, U, and Nb sandwiches with the result that a V, U bond was attained by heating for one hour at 800 or 858 deg C. Thorium Metallurgy. Thorium alloys are being tested in high temperature water for the purpose of determining the most corrosion resistant alloys. Zirconiurn Metallurgy. The twelve Zr base alloys which were arc melted were hot rolled in the beta region at 1650 deg F and are now being corrosion tested. Other Problems. Another experiment to study the effect of various factors on extruction shift was studied. Three multi- temperature extrusions of UO/sub 2/ were accompllshed. Three V alloy ingots (2.5 Ti-- 1Si, 10Ti-- 1Ta, and 10Ti--1Nb), 2 inches in diameter with lengths up to 4 inches were fabricated into 1/4-inch x 0.020-inch wall tubing. (For preceding period see NMI-2073). (W. L.H.)
- Research Organization:
- Nuclear Metals, Inc., Concord, Mass.
- NSA Number:
- NSA-14-016949
- OSTI ID:
- 4180796
- Report Number(s):
- NMI-2074
- Resource Relation:
- Other Information: Decl. May 18, 1960. Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALUMINUM ALLOYS- BONDING- CORROSION- DEFECTS- DIFFUSION- ELECTRIC ARCS- EXTRUSION- FABRICATION- FUEL CANS- HEAT TREATMENTS- HEATING- INDUCTION- LATTICES- MELTING- METALLURGY- MOLYBDENUM ALLOYS- NIOBIUM- PLATES- SAMPLING- THORIUM ALLOYS- TUBES- URANIUM- URANIUM ALLOYS- VANADIUM- WIRES- X RADIATION- ZIRCALOY- ZIRCONIUM ALLOYS
BERYLLIUM- CRYSTALS- EXTRUSION- FUEL CANS- HIGH TEMPERATURE- MATERIALS TESTING- METALLURGY- ROLLING- URANIUM ALLOYS- ZIRCONIUM ALLOYS
CORROSION- ELECTRIC ARCS- MATERIALS TESTING- MELTING- METALLURGY- ROLLING- ZIRCONIUM- ZIRCONIUM ALLOYS
CORROSION- HIGH TEMPERATURE- MATERIALS