Impact properties of low activation vanadium alloy after low-temperature neutron irradiation at 450°C and below

Takuya Nagasaka, Takeo Muroga, Takeshi Miyazawa, Hideo Watanabe, Masanori Yamazaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A reference low-activation vanadium alloy NIFS-HEAT-2 was neutron-irradiated at 450° C and below, in order to estimate the resistance to low temperature irradiation. DBTT of NIFS-HEAT-2 was-85°C after irradiation up to 8.5 dpa at 450° C in Na atmosphere, while DBTT was below-196°C for 3.7 dpa at 430°C in Li atmosphere. On the other hand, DBTT was lower than about-90° C for the irradiation up to 0.1~1 dpa at 60, 290 and 400° C. The DBTT shift was increased with increasing hardness after neutron irradiation for limited irradiation conditions. The mechanisms of DBTT shift and irradiation hardening at low temperature was discussed.

Original languageEnglish
Pages (from-to)379-383
Number of pages5
JournalFusion Science and Technology
Volume60
Issue number1
DOIs
Publication statusPublished - 2011

ASJC Scopus subject areas

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

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