Effects of Microstructural Defects on Ion-Irradiated Type-316 Stainless Steel
作者:
S. A. Agamy,
M. Y. Khalil,
M. Y. Hamza,
W. A. Abou-Taleb,
期刊:
Isotopenpraxis Isotopes in Environmental and Health Studies
(Taylor Available online 1990)
卷期:
Volume 26,
issue 6
页码: 287-291
ISSN:0021-1915
年代: 1990
DOI:10.1080/10256019008624300
出版商: Taylor & Francis Group
关键词: cold working;grain boundaries;grain size;interstitials;ion beams;microstructure;point defects;radiation effects;steel-cr 17 ni 12 mo 3;swelling;voids
数据来源: Taylor
摘要:
Microstructure defects play a very important role in the swelling of irradiated stainless steel. This work is a parametric study of the effects of microstructural defects on the swelling of ion-irradiated steel. For simplicity, vacancy loop effects were neglected. Cold working was found to play a complicated role in the swelling behavior. On one hand, it increase the bias to interstitial absorption due to the increase in dislocation density. On the other hand, it decreases the total flux of point defects to voids by the decrease of the point defect concentrations. Grain size has also a strong effect on swelling. It was found that large gain sizes produces higher swelling and vise versa, i.e. the larger the surface of grain boundaries the less the irradiation-produced swelling. Similar effects were found for precipitates.
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