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INVESTIGATION ON ALLOYS OF ZIRCONIUM WITH NIOBIUM AND/OR SILICON IN VIEW OF THEIR USE AS SHEATHING MATERIAL IN WATER-COOLED NUCLEAR REACTORS. Euratom Research Assignment. Second Quarterly Rport for the Period July 1 to September 30, 1960

Technical Report ·
OSTI ID:4017549
An investigation was made of the constitution of Zr-- Nb alloys. It was observed that the solubility of niobium in alpha -zirconium was highest at about 590 deg C in alloys containing either spongy or iodide zirconium. The maximum solubility of niobium was of the order of 1.5 to 2% in spongy zirconium, whereas it reached slightly over 2% for iodide zirconium. The temperature of the monotectoid reaction was found to be around 590 deg C for alloys prepared with spongy zirconium. A separation of martensitic platelets took place when alloys with a niobium content of 7.5 to 17% were quenched in water. Comparative corrosion tests were continued. It appeared from these tests that the resistance to corrosion is definitely related to the final annealing temperature and thus also to texture. Some of the alloys were subjected to tensile tests at room temperature and up to 450 deg C. (auth)
Research Organization:
Metallgesellschaft A.G., Frankfurt am Main
NSA Number:
NSA-15-017323
OSTI ID:
4017549
Report Number(s):
TID-12477; AEC 72/79
Country of Publication:
Country unknown/Code not available
Language:
English