In-situ investigation of hydrogen diffusion in Zircaloy-4 by means of neutron radiography

24Citations
Citations of this article
24Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

The hydrogen diffusion from the gas phase into Zircaloy-4 solid cylinders was investigated at various temperatures between 823 and 1473 K. Diffusion coefficients were fitted using axial hydrogen distributions for all temperatures investigated. The activation energy of the hydrogen diffusion was calculated for temperatures at which the bcc β phase is stable. The determined value of 48.3 kJ mol-1 K-1 is significantly higher than values published by other authors. At lower temperatures the hydrogen uptake is connected with a phase transformation from the hep α- to the bcc β-phase. The spatial phase distribution and the hydrogen concentrations in the two phases were analysed.

Cite

CITATION STYLE

APA

Grosse, M., Van Den Berg, M., Goulet, C., & Kaestner, A. (2012). In-situ investigation of hydrogen diffusion in Zircaloy-4 by means of neutron radiography. In Journal of Physics: Conference Series (Vol. 340). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/340/1/012106

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free