Void swelling behavior in electron irradiated Fe-Cr-Ni model alloys under temperature variation

Y. Satoh, S. Abe, H. Matsui, I. Yamagata

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We examined the effect of short HVEM pre-irradiation at lower or higher temperature on void swelling behavior in electron irradiated austenitic model alloys, Fe-15Cr-xNi (x = 15, 20, 25 or 30 wt%). By 6 dpa irradiation at constant temperature, voids were formed at 200-400 °C in 15, 20, and 25Ni alloys but did not form above 350 °C in the 30Ni alloy. In the temperature variation irradiation, an initial 0.6 dpa irradiation at 200-500 °C was followed by irradiation of 5.4 dpa at 400 °C. The effect of pre-irradiation at lower temperature was a slight increase in the void number density, and that at higher temperature was a suppression of void formation. SFT induced by irradiation at lower temperature were not effective void nuclei in the subsequent irradiation at higher temperature.

Original languageEnglish
Pages (from-to)972-976
Number of pages5
JournalJournal of Nuclear Materials
Volume367-370 B
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2007 Aug 1

ASJC Scopus subject areas

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

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