Study of defects introduced by 2 and 9 MeV electron irradiation in B2 type Fe-Al alloy

Youhei Ueno, Akihiro Iwase, Kazuhito Ohsawa, Xu Qiu, Koichi Sato, Yuichi Saitoh, Fuminobu Hori

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

It is well known that B2 type Fe-Al intermetallic compound alloy possibly includes more than two types of vacancies basically, that is Fe-vacancy and Al-vacancy. Although MeV ordered electron irradiation produces vacancies and interstitials, the threshold energy of displacement for each elemental atom in intermetallic alloys is not necessarily same. In this study, we performed positron annihilation lifetime and Doppler broadening measurements for different energy of electron irradiated B2 ordered Fe50%Al alloy. Different values of positron annihilation lifetime for 2 and 9 MeV electron irradiation were measured. Also, the Doppler broadening S and W parameters showed different changing trend for different energy of electron irradiation. These results suggest that selective atomic displacement takes place in Fe-Al ordered alloy by electron irradiation with different energies.

本文言語英語
ホスト出版物のタイトルPositron Annihilation - ICPA-17
編集者C.Q. He , Y.C. Wu , N. Qi , Z.Q. Chen
出版社Trans Tech Publications Ltd
ページ126-129
ページ数4
373 DDF
ISBN(印刷版)9783038356059
DOI
出版ステータス出版済み - 2016
イベント17th International Conference onPositron Annihilation, ICPA-17 - Wuhan, 中国
継続期間: 9 20 20169 25 2016

その他

その他17th International Conference onPositron Annihilation, ICPA-17
Country中国
CityWuhan
Period9/20/169/25/16

All Science Journal Classification (ASJC) codes

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

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