The behaviour of helium gas in irradiated copper-boron alloys

Vela P. and Russell B. (1966) The behaviour of helium gas in irradiated copper-boron alloys. Journal of Nuclear Materials, 19 3: 312-326.

Author Vela P.
Russell B.
Title The behaviour of helium gas in irradiated copper-boron alloys
Journal name Journal of Nuclear Materials   Check publisher's open access policy
ISSN 0022-3115
Publication date 1966
Sub-type Article (original research)
Volume 19
Issue 3
Start page 312
End page 326
Total pages 15
Subject 2504 Electronic, Optical and Magnetic Materials
Abstract The behaviour of helium in neutron-irradiated copper-boron alloys was investigated in the temperature range between 300° C and 800° C. It was found that bubbles nucleate preferentially upon dislocations which are created by the annealing of displacement damage. After gas precipitation is complete, the bubbles grow by migration and coalescence, at such a rate that the average bubble radius is proportional to t 1 14, where t is time. Helium causes solution-hardening and the strength of an alloy containing bubbles is inversely proportional to the bubble spacing. One atomic per cent of helium causes a 3 μohm · cm increase in electrical resistivity. The changes which occur in the resistance during annealing are complicated and contributions arise from the concentration of helium in solution and the changing distribution of bubbles. An activation energy of 0.98 ± 0.1 eV was obtained for the first stage of annealing during which all of the gas leaves solution to form bubbles.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
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Created: Tue, 14 Jun 2016, 06:14:31 EST by System User