Magnetic after-effect analysis of dislocation relaxations in thermally aged and neutron irradiated Fe-Cu alloys

Boris Minov; Ben Van de Wiele; Milan Konstantinovic; Dmitry Terentyev; Luc Dupré

doi:10.1109/TMAG.2011.2173175

Magnetic after-effect analysis of dislocation relaxations in thermally aged and neutron irradiated Fe-Cu alloys

Boris Minov, Ben Van de Wiele, Milan Konstantinovic, Dmitry Terentyev, Luc Dupré

Research output › peer-review

Abstract

Magnetic after-effect measurements of thermally aged and neutron irradiated, cold-worked Fe-Cu model alloys are performed in the temperature range between 100 K and 500 K in order to study the effects of copper precipitates and the irradiation induced defects on dislocation relaxation processes. For these two conditions, by increasing the level of plastic deformation, we show the clear difference in the behavior of dislocation related peaks. The effect of irradiation induced defects on dislocations is clearly pronounced by the increased number of relaxed dislocations compared to the number in the thermally aged samples. Furthermore, we observe a non-monotonic change in the behavior of the intensities of dislocation-related peaks in neutron irradiated samples, which occurs due to dislocation annihilation of the irradiation induced defects.

Original language	English
Pages (from-to)	1309-1312
Journal	IEEE Transactions on Magnetics
Volume	48
Issue number	4
DOIs	https://doi.org/10.1109/TMAG.2011.2173175
State	Published - Apr 2012
Event	2011 - SMM : 20th Conference on Soft Magnetic Materials - IEEE Magnet. Soc., Kos Duration: 18 Sep 2011 → 22 Sep 2011

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Cite this

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title = "Magnetic after-effect analysis of dislocation relaxations in thermally aged and neutron irradiated Fe-Cu alloys",

abstract = "Magnetic after-effect measurements of thermally aged and neutron irradiated, cold-worked Fe-Cu model alloys are performed in the temperature range between 100 K and 500 K in order to study the effects of copper precipitates and the irradiation induced defects on dislocation relaxation processes. For these two conditions, by increasing the level of plastic deformation, we show the clear difference in the behavior of dislocation related peaks. The effect of irradiation induced defects on dislocations is clearly pronounced by the increased number of relaxed dislocations compared to the number in the thermally aged samples. Furthermore, we observe a non-monotonic change in the behavior of the intensities of dislocation-related peaks in neutron irradiated samples, which occurs due to dislocation annihilation of the irradiation induced defects.",

keywords = "Defects, dislocations, iron alloys, magnetic after-effect, neutron irradiation",

author = "Boris Minov and {Van de Wiele}, Ben and Milan Konstantinovic and Dmitry Terentyev and Luc Dupr{\'e}",

note = "Score = 10; 2011 - SMM : 20th Conference on Soft Magnetic Materials ; Conference date: 18-09-2011 Through 22-09-2011",

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TY - JOUR

T1 - Magnetic after-effect analysis of dislocation relaxations in thermally aged and neutron irradiated Fe-Cu alloys

AU - Minov, Boris

AU - Van de Wiele, Ben

AU - Konstantinovic, Milan

AU - Dupré, Luc

A2 - Terentyev, Dmitry

N1 - Score = 10

PY - 2012/4

Y1 - 2012/4

N2 - Magnetic after-effect measurements of thermally aged and neutron irradiated, cold-worked Fe-Cu model alloys are performed in the temperature range between 100 K and 500 K in order to study the effects of copper precipitates and the irradiation induced defects on dislocation relaxation processes. For these two conditions, by increasing the level of plastic deformation, we show the clear difference in the behavior of dislocation related peaks. The effect of irradiation induced defects on dislocations is clearly pronounced by the increased number of relaxed dislocations compared to the number in the thermally aged samples. Furthermore, we observe a non-monotonic change in the behavior of the intensities of dislocation-related peaks in neutron irradiated samples, which occurs due to dislocation annihilation of the irradiation induced defects.

AB - Magnetic after-effect measurements of thermally aged and neutron irradiated, cold-worked Fe-Cu model alloys are performed in the temperature range between 100 K and 500 K in order to study the effects of copper precipitates and the irradiation induced defects on dislocation relaxation processes. For these two conditions, by increasing the level of plastic deformation, we show the clear difference in the behavior of dislocation related peaks. The effect of irradiation induced defects on dislocations is clearly pronounced by the increased number of relaxed dislocations compared to the number in the thermally aged samples. Furthermore, we observe a non-monotonic change in the behavior of the intensities of dislocation-related peaks in neutron irradiated samples, which occurs due to dislocation annihilation of the irradiation induced defects.

KW - Defects

KW - dislocations

KW - iron alloys

KW - magnetic after-effect

KW - neutron irradiation

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UR - http://knowledgecentre.sckcen.be/so2/bibref/9075

U2 - 10.1109/TMAG.2011.2173175

DO - 10.1109/TMAG.2011.2173175

M3 - Article

SN - 0018-9464

VL - 48

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EP - 1312

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4

T2 - 2011 - SMM

Y2 - 18 September 2011 through 22 September 2011

ER -