The relative influence of helium/dpa ratio and other variables on neutron-induced swelling of Fe-Ni-Cr alloys at 495°C and 14 dpa

J. F. Stubbins, F. A. Garner

Research output: Contribution to journalArticlepeer-review

Abstract

An isotopic tailoring experiment utilizing 59Ni has been conducted in the Fast Flux Test Facility (FFTF) to study the influence of helium/dpa ratio on neutron-induced microstructural evolution. The influence of other variables, namely composition (nickel and phosphorous variations), and cold work on swelling was also examined. The alloys, Fe-25Ni-15Cr, Fe-25Ni-15Cr-0.04P, and Fe-45Ni-15Cr, were each irradiated in four conditions: solution annealed or 20% cold worked both with and without 9Ni additions, yielding He/dpa ratios of 0.35 and 4.7 at 25Ni and 0.57 and 4.9 at 45Ni. Increases in helium were found to alter the details of microstructural evolution somewhat at 495°C, but the effect of helium was small compared to the effects of other variables studied.

Original languageEnglish (US)
Pages (from-to)523-525
Number of pages3
JournalJournal of Nuclear Materials
Volume179-181
Issue numberPART 1
DOIs
StatePublished - 1991

ASJC Scopus subject areas

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

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