Ion-irradiation enhancement of materials degradation in Fe-Cr single crystals detected by magnetic technique

Yasuhiro Kamada, Hideo Watanabe, Seiji Mitani, Jitendra Narayana Mohapatra, Hiroaki Kikuchi, Satoru Kobayashi, Masaki Mizuguchi, Koki Takanashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Single crystalline Fe-20%Cr film was prepared using a molecular beam epitaxy technique, and 2.4 MeV Cu2+ ion-irradiation was subsequently carried out at room temperature and at 748 K. Magnetic hysteresis measurement and magnetic domain observation showed that room-temperature irradiation did not have a large effect on the magnetic properties of Fe-20%Cr films. However, irradiation at 748 K caused a significant magnetic hardening and a drastic change in domain structures. It is assumed that the domain characteristics reflect the formation of chromium-rich precipitates due to the phase separation accelerated by irradiation. This study demonstrates the feasibility of nondestructive magnetic techniques for evaluating the materials degradation of Fe-Cr alloys under the irradiation environment.

Original languageEnglish
JournalJournal of Nuclear Materials
Volume442
Issue number1-3 SUPPL.1
DOIs
Publication statusPublished - Jan 14 2013

Fingerprint

Ion bombardment
ion irradiation
Irradiation
Single crystals
degradation
Degradation
irradiation
augmentation
single crystals
Magnetic hysteresis
Magnetic domains
room temperature
Chromium
magnetic domains
Molecular beam epitaxy
Phase separation
hardening
Hardening
Precipitates
precipitates

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Ion-irradiation enhancement of materials degradation in Fe-Cr single crystals detected by magnetic technique. / Kamada, Yasuhiro; Watanabe, Hideo; Mitani, Seiji; Mohapatra, Jitendra Narayana; Kikuchi, Hiroaki; Kobayashi, Satoru; Mizuguchi, Masaki; Takanashi, Koki.

In: Journal of Nuclear Materials, Vol. 442, No. 1-3 SUPPL.1, 14.01.2013.

Research output: Contribution to journalArticle

Kamada, Y, Watanabe, H, Mitani, S, Mohapatra, JN, Kikuchi, H, Kobayashi, S, Mizuguchi, M & Takanashi, K 2013, 'Ion-irradiation enhancement of materials degradation in Fe-Cr single crystals detected by magnetic technique', Journal of Nuclear Materials, vol. 442, no. 1-3 SUPPL.1. https://doi.org/10.1016/j.jnucmat.2012.11.042
Kamada, Yasuhiro ; Watanabe, Hideo ; Mitani, Seiji ; Mohapatra, Jitendra Narayana ; Kikuchi, Hiroaki ; Kobayashi, Satoru ; Mizuguchi, Masaki ; Takanashi, Koki. / Ion-irradiation enhancement of materials degradation in Fe-Cr single crystals detected by magnetic technique. In: Journal of Nuclear Materials. 2013 ; Vol. 442, No. 1-3 SUPPL.1.
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