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ASTM Selected Technical Papers
Effects of Radiation on Materials: 21st International Symposium
By
ML Grossbeck
ML Grossbeck
1
University of Tennessee
,
Knoxville, Tennessee Symposium Chair and Editor
Search for other works by this author on:
TR Allen
TR Allen
2
University of Wisconsin
?
Madison, Wisconsin Symposium Co-Chair and Editor
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RG Lott
RG Lott
3
Westinghouse Electirc Company
?
Pittsburgh, Pennsylvania Symposium Co-Chair and Editor
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AS Kumar
AS Kumar
4
University of Missouri Rolla
?
Rolla, Missouri Symposium Co-Chair and Editor
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ISBN-10:
0-8031-3477-0
ISBN:
978-0-8031-3477-5
No. of Pages:
758
Publisher:
ASTM International
Publication date:
2004

Measurements are presented of electrical resistance and elastic moduli (Young's modulus and shear modulus) of stabilized austenitic fuel pin cladding after irradiation in the BN-600 reactor. Additional data are presented on changes in electrical resistivity of another austenitic steel irradiated in the BN-350. The elastic moduli of both steels are reduced and the electrical resistance is increased as the neutron dose and resultant swelling increase.

Dependencies of these changes in physical properties on neutron irradiation dose, temperature, and swelling level are plotted and it is shown that to the first order, the property changes are dependent on the swelling level, in agreement with earlier U.S. and Russian data. It is also observed, however, that changes in electrical resistance and elastic moduli frequently differ slightly for specimens with equal swelling, but which were obtained at different combinations of temperature and dose. These second-order differences appear to arise from contributions of other radiation-induced structural changes, especially in precipitation, which depends strongly on irradiation temperature in these stabilized steels.

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Brager
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,”
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,
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, and
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,”
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,”
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Edwards
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,
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,
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18.
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,”
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,
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