Degree Type

Thesis

Date of Award

1987

Degree Name

Master of Science

Department

Materials Science and Engineering

First Advisor

Otto Buck

Abstract

The effect of hydrogen, deuterium and oxygen on the anelastic properties of V, Nb and V-Nb alloys were examined. Activation parameters were obtained for the oxygen Snoek peak in V and Nb with various hydrogen concentrations. Hydrogen was found not to affect these oxygen relaxation parameters. Thus no interaction of oxygen with hydrogen occurs in the pure metals. Measurement of the hydrogen Snoek peak and the deuterium Snoek peak in V-Nb alloys also fed to determination of activation parameters for these interstitials that· are consistent with those found by diffusion measurements in this same alloy series. An isotope effect was observed. In addition, oxygen was found not to affect the relaxation of the hydrogen in the V-Nb alloys, indicating that the oxygen-hydrogen interaction in the alloys is also negligible.

DOI

https://doi.org/10.31274/rtd-180813-5084

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Lisa J. H. Brasche

Language

en

Date Available

June 10, 2013

File Format

application/pdf

File Size

108 pages

Included in

Metallurgy Commons

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