Role of nickel and manganese in recovery of resistivity in iron-based alloys after low-temperature proton irradiation

K. Murakami, T. Iwai, H. Abe, N. Sekimura, Y. Katano, T. Iwata, T. Onitsuka

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

This study investigates the recovery of electric resistivity in pure iron, Fe-0.6Ni and Fe-1.5Mn as related to isochronal annealing following 1 MeV proton irradiation at lower temperature than 70 K, focusing on the relationship between solute atoms and irradiation defects. Both nickel and manganese prevent stage ID recovery, which corresponds to correlated recombination. Stage II recovery is also changed by the addition of a solute, which corresponds to the migration of small interstitial clusters. In both pure iron and Fe-0.6Ni, no evident difference was observed in the stage III region, which corresponds to the migration of vacancies. In contrast, two substages appeared in the Fe-1.5Mn at a higher temperature than stage IIIB appeared in pure iron. These substages are considered to represent the release of irradiation-induced defects, which was trapped by manganese.

Original languageEnglish
Pages (from-to)1680-1695
Number of pages16
JournalPhilosophical Magazine
Volume95
Issue number15
DOIs
Publication statusPublished - 2015 May 24

Keywords

  • radiation defects ion irradiation
  • reactor pressure vessel
  • recovery stages

ASJC Scopus subject areas

  • Condensed Matter Physics

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