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Title: Irradiation effects on magnetic properties in neutron and proton irradiated reactor pressure vessel steel

Abstract

The effects of neutron and proton dose on the magnetic properties of a reactor pressure vessel (RPV) steel were investigated. The coercivity and maximum induction increased in two stages with respect to neutron dose, being nearly constant up to a dose of 1.5 x 10{sup {minus}7} dpa, followed by a rapid increase up to a dose of 1.5 x 10{sup {minus}5} dpa. The coercivity and maximum induction in the proton irradiated specimens also showed a two stage variation with respect to proton dose, namely a rapid increase up to a dose of 0.2 x 10{sup {minus}2} dpa, then a decrease up to 1.2 x 10{sup {minus}2} dpa. The Barkhausen noise (BN) amplitude in neutron irradiated specimens also varied in two stages in a reverse manner, the transition at the same dose of 1.5 x 10{sup {minus}7} dpa. The BN amplitude in proton irradiated specimens decreased by 60% up to 0.2 x 10{sup {minus}2} dpa followed by an increase up to 1.2 x 10{sup {minus}2} dpa. The results were in good accord with the one dimensional domain wall model considering the density of defects and wall energy.

Authors:
; ; ;
Publication Date:
Research Org.:
Korea Atomic Energy Research Inst., Taejon (KR)
OSTI Identifier:
20000826
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 22 NUCLEAR REACTOR TECHNOLOGY; PHYSICAL RADIATION EFFECTS; MAGNETIC PROPERTIES; STEEL-ASTM-A508; REACTOR MATERIALS; PRESSURE VESSELS

Citation Formats

Park, D.G., Hong, J.H., Kim, I.S., and Kim, H.C. Irradiation effects on magnetic properties in neutron and proton irradiated reactor pressure vessel steel. United States: N. p., 1999. Web. doi:10.1109/20.800701.
Park, D.G., Hong, J.H., Kim, I.S., & Kim, H.C. Irradiation effects on magnetic properties in neutron and proton irradiated reactor pressure vessel steel. United States. doi:10.1109/20.800701.
Park, D.G., Hong, J.H., Kim, I.S., and Kim, H.C. Wed . "Irradiation effects on magnetic properties in neutron and proton irradiated reactor pressure vessel steel". United States. doi:10.1109/20.800701.
@article{osti_20000826,
title = {Irradiation effects on magnetic properties in neutron and proton irradiated reactor pressure vessel steel},
author = {Park, D.G. and Hong, J.H. and Kim, I.S. and Kim, H.C.},
abstractNote = {The effects of neutron and proton dose on the magnetic properties of a reactor pressure vessel (RPV) steel were investigated. The coercivity and maximum induction increased in two stages with respect to neutron dose, being nearly constant up to a dose of 1.5 x 10{sup {minus}7} dpa, followed by a rapid increase up to a dose of 1.5 x 10{sup {minus}5} dpa. The coercivity and maximum induction in the proton irradiated specimens also showed a two stage variation with respect to proton dose, namely a rapid increase up to a dose of 0.2 x 10{sup {minus}2} dpa, then a decrease up to 1.2 x 10{sup {minus}2} dpa. The Barkhausen noise (BN) amplitude in neutron irradiated specimens also varied in two stages in a reverse manner, the transition at the same dose of 1.5 x 10{sup {minus}7} dpa. The BN amplitude in proton irradiated specimens decreased by 60% up to 0.2 x 10{sup {minus}2} dpa followed by an increase up to 1.2 x 10{sup {minus}2} dpa. The results were in good accord with the one dimensional domain wall model considering the density of defects and wall energy.},
doi = {10.1109/20.800701},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}