POWER REACTOR PROGRAM. Progress Report to E. I. du Pont de Nemours and Company for the Period July 1, 1960 through July 31, 1960
Several improvements were made in the design of billets for thin-walled tubes of unalloyed uranium. Of three experimental billet designs for thin-walled inner tubes, two yielded tubes with very little clad thinning; one of these designs is being used for three more prototype tubes. On the basis of data previously developed by extrusion of prototype tubes, two tubes with enriched U - 1.15 wt. % Mo cores were extruded for the Vallecitos Boiling Water Reactor (VBWR). Eleven unalloyed uranium specimens for the Savannah River Laboratory capsule-irradiation program were prepared and shipped. Additional creep and stress-rupture data for U-1.5 wt.% Mo alloy and unalloyed uranium were obtained. Efforts on the program to develop stainless-steel-Zircaloy joints were directed toward careful study of joints already produced, primarily to elucidate the mechanism by which the interfaces at the ends of the tapers sometimes are not bonded. (For preceding period see NMI-7229-) (W.L.H.)
- Research Organization:
- Nuclear Metals, Inc., Concord, Mass.
- NSA Number:
- NSA-15-001809
- OSTI ID:
- 4132329
- Report Number(s):
- NMI-7230
- Country of Publication:
- United States
- Language:
- English
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