Varying temperature irradiation effects of V-4Cr-4Ti alloy with small addition of Si, Al and y

M. Satou, H. Nakayashiki, T. Chuto, A. Hasegawa, K. Abe

Research output: Contribution to journalConference articlepeer-review

Abstract

To evaluate the effects of temperature varying neutron irradiation of the V-4Cr-4Ti alloys with small addition of Si, Al and Y, microstructure observation and micro Vickers hardness test were carried out after one cycle varying temperature neutron irradiation at the Japan Material Test Reactor (JMTR). On a temperature increase from 200 to 350°C, the hardness of the alloys decreased. It is possible to explain the appearance of a vacancy-rich state after the temperature change and subsequent mutual disappearance of interstitials and the vacancies. Following the temperature change from 375 to 500°C, the hardness of the alloys increased, therefore, the vacancy-rich state might not appear due to stable defect clusters formed at the lower temperature conditions.

Original languageEnglish
Pages (from-to)714-724
Number of pages11
JournalASTM Special Technical Publication
Issue number1447
Publication statusPublished - 2004 Jan 1
EventEffects of Radiation on Materials: 21st International Symposium - Tucson, AZ, United States
Duration: 2002 Jun 182002 Jun 20

Keywords

  • Hardness
  • Neutron irradiation
  • Temperature variation
  • Vanadium alloy

ASJC Scopus subject areas

  • Engineering(all)

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