The vanadium-zirconium alloy system

<p>This investigation of the vanadium-zirconium alloy system produced evidence on several points concerning the equilibrium diagram. It was shown that a eutectic reaction between an intermediate phase and a zirconium-rich solid solution occurs at a temperature of 1230° +/- 10°C, and that the intermediate phase decomposes in a peritectic reaction at 1300° +/- 25°C to give liquid and a vanadium-rich solid solution. The eutectic composition was found to be near 30 percent vanadium. The intermediate phase was determined to exist over only a very narrow range of composition near 52.8 percent vanadium, the stoichiometric composition for V2Zr. V2Zr was shown to undergo no solid state transformations;The lattice type for V2Zr was not determined. It did not appear to be that reported by Wallbaum (2), however;A eutectoid reaction was found to take place at 777° +/- 5°C. The reaction could not be complete1y suppressed by quenching. The eutectoid composition was found to be 5 percent +/- 0.5 percent vanadium. The temperature and composition of the eutectoid may have been influenced by an impurity (perhaps oxygen) in the alloys, however;Some evidence was obtained to show that vanadium dissolves zirconium to the extent of less than five percent at 600°C and slightly more than five percent at temperatures above 800°C. The evidence was poor.</p>

Name thesis:degree_name

Doctor of Philosophy

Level thesis:degree_level

dissertation

Department dc:contributor.department

Department of Chemistry

Year dc:date.issued

1954

Author dc:creator

• Williams, John

Language dc:language.iso

en

DOI

https://doi.org/10.31274/rtd-180813-14668

Identifier

archive/lib.dr.iastate.edu/rtd/13305/

OAI identifier oai:identifier

oai:dr.lib.iastate.edu:20.500.12876/66769