POWER REACTOR PROGRAM. Progress Report to E.I. du Pont de Nemours and Company for the Period September 1, 1959 through September 30, 1959
Technical Report
·
OSTI ID:4150344
Of the lot of five unalloyed U tubes in the set, only two were found suitable for irradiation testing, No. 53 and No. 54. In the program aimed at producing tubes with cores of alloys other than U-2 wt.% Zr, three full-size tubes were extruded. The lot consisted of two full-size tubes with individual cores of 1 wt.% Si and 1.5 wt.% Mo and a companion tandem tube with cores of each of these compositions provided for destructive examination. Heat treatment studies are being performed in the systems U-1.5 wt.% Mo and U-0.2 wt.% Al in an attempt to obtain desired metallographic structures. In the program aimed at finding a metastable beta-phase alloy for power reactor application, preliminary screening has eliminated all but the following compositions: U-0.3 wt.% Cr, U-0.4 wt.% Si-0.4 wt.% Al, U-0.4 wt.% Si-0.3 wt.% Cr, and U-0.3 wt.% Cr-0.3 wt.% Mo. An attempt was made to obtain U-2 wt.% Zr core material with high carbon content. An intensive program was carried out in the area of demonstrating the feasibility of recycling scrap in the process used for making castings for driver tubes. Promising results were obtained using a sawtooth billet preshape for the fabrication of stainless steel-Zircaloy tubular joints by tandem extrusion. (For preceding period see NMI-4397.). (W.L.H.)
- Research Organization:
- Nuclear Metals, Inc., Concord, Mass.
- NSA Number:
- NSA-14-023215
- OSTI ID:
- 4150344
- Report Number(s):
- NMI-4398
- Country of Publication:
- United States
- Language:
- English
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