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Characteristics of the thermal desorption of helium from the model alloys Kh16N15 and Kh13

Characteristics of the thermal desorption of helium from the model alloys Kh16N15 and Kh13 Thermal desorption spectrometry is used to study the characteristic behavior of helium in the new model bcc and fcc alloys Fe-13Cr and Fe-16Cr-15Ni, which are the basis of structural reactor steels, with the substitution elements Mo, W, Nb, Ta, V, and Ti and carbon. It is found that the gas-release spectra of bcc alloys are more complicated. The activation energy of gas release is calculated. It is shown that the alloying elements do not have a unique effect on the mechanisms of helium release from bcc and fcc alloys. The data obtained are discussed from the standpoint of the formation and thermal stability of different helium—vacancy complexes and the effect of doping by a change of the diffusion mechanisms on the growth and migration of bubbles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Atomic Energy Springer Journals

Characteristics of the thermal desorption of helium from the model alloys Kh16N15 and Kh13

Binyukova, S.; Chernov, I.; Kalin, B.; Sve, Tan
Atomic Energy , Volume 104 (1) – Apr 19, 2008
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References (6)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer Science+Business Media, Inc.
Subject
Engineering; Nuclear Engineering; Nuclear Physics, Heavy Ions, Hadrons; Nuclear Chemistry
ISSN
1063-4258
eISSN
1573-8205
DOI
10.1007/s10512-008-0004-z
Publisher site
See Article on Publisher Site

Abstract

Thermal desorption spectrometry is used to study the characteristic behavior of helium in the new model bcc and fcc alloys Fe-13Cr and Fe-16Cr-15Ni, which are the basis of structural reactor steels, with the substitution elements Mo, W, Nb, Ta, V, and Ti and carbon. It is found that the gas-release spectra of bcc alloys are more complicated. The activation energy of gas release is calculated. It is shown that the alloying elements do not have a unique effect on the mechanisms of helium release from bcc and fcc alloys. The data obtained are discussed from the standpoint of the formation and thermal stability of different helium—vacancy complexes and the effect of doping by a change of the diffusion mechanisms on the growth and migration of bubbles.

Journal

Atomic Energy – Springer Journals

Published: Apr 19, 2008

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