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Study on defects of FeAl soft magnetic alloy under proton and electron irradiation

  • Li Yang*
  • , Liang Zhen
  • , Yan Hong Liu
  • , Wen Zhu Shao
  • , Xing Zhong Cao
  • , Zhuo Xin Li
  • , Bao Yi Wang
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • CAS - Institute of High Energy Physics

Research output: Contribution to journalArticlepeer-review

Abstract

The irradiation damage of FeAl soft magnetic alloy applied to satellite magnetic torquer exposed to proton and electron irradiation were investigated with accelerator. The change of defects and crystal structures under different irradiation environments were studied by positron annihilation spectroscopy and x-ray diffraction. The results reveal that the amount of point defects in FeAl alloy increased after irradiations. The proton irradiation resulted in more point defects, compared with electron irradiation, and during irradiation the aggregation of individual vacancy and the growth of vacancy group were apparent. The proton irradiation resulted in the precipitation of ordered phase Fe 3Al in FeAl alloy.

Original languageEnglish
Pages (from-to)19-22
Number of pages4
JournalCailiao Kexue yu Gongyi/Material Science and Technology
Volume19
Issue numberSUPPL. 1
StatePublished - Dec 2011
Externally publishedYes

Keywords

  • Defects
  • Electron irradiation
  • FeAl soft magnetic alloy
  • Positron annihilation
  • Proton irradiation

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