A BRIEF LITERATURE SURVEY OF HIGH STRENGTH ZIRCONIUM ALLOYS WITH EMPHASIS ON THE ZIRCONIUM-NIOBIUM-X TERNARY SYSTEMS
sodium lead and lithium is being carried on jointly with the Experimental Engineering Section of the ANP Division. Stainless steel types 347 321 and 310- Inconel; and Haynes Alloy 25 displayed very little attack by sodium in 1000 hr at 1500 deg C. The welds are still the vulnerable areas, and various welding techniques need investigation to determine the best way to eliminate this source of failure. Work on the fabrication of solid type fuel elements for hightemperature reactors is progressing. New types of perforated or mechanically deformed metal plates which can be loaded with UO/sub 2/ and clad are being considered. The pressed and clad type in which the U0/sub 2/ and a metal powder are pressed and then clad by hot rolling shows good continuous metallic network even up to 50% UO/sub 2/, and good bonding to the cladding material can be obtained. The spray coating or a metal surface onto massive berylliam oxide is being attempted; however, evaluation of the bond is difficult. The differences in thermal expanslon between the BeO and the metal have led to the consideration of coating with some of the more retractory metals. The Welding Laboratory is engaged in a program to develop suitable techniqnes for welding Inconel tubing of small diameter to headers. Thus far mannal inert-arc welding has been used, but equipment is being assembled to operate a semiautomatic cone-arc apparatus. Recovery in copper at room temperature is being investigated by x-ray methods. An analysis of the (331) line in the copper pattern indicates that in copper filings recovery is complete in aboat one month (auth)
- Research Organization:
- Atomics International Div., North American Aviation, Inc., Canoga Park, Calif.
- NSA Number:
- NSA-14-002667
- OSTI ID:
- 4218871
- Report Number(s):
- NAA-SR-Memo-3893
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
Similar Records
PROGRESS RELATING TO CIVILIAN APPLICATIONS DURING FEBRUARY 1959
PROGRESS RELATING TO CIVILIAN APPLICATIONS DURING JANUARY, 1959