Neutron irradiation embrittlement of molybdenum rhenium alloys and their improvement by heat treatment

Akira Hasegawa, Kazukiyo Ueda, Manabu Satou, Katsunori Abe

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Irradiation-induced embrittlement is one of the major problems with molybdenum alloys, which have been considered as one of the candidates for divertor structural materials. The effects of rhenium content, heat-treatment and irradiation condition on mechanical properties and microstructural development of molybdenum rhenium alloys were studied after neutron exposure by FFTF/MOTA up to high fluence (∼1 × 1027 n/m2, En>0.1 MeV). Appreciable plastic deformation was observed in a bending test on stress-relieved Mo-5 wt% Re irradiated at high temperatures. Fine, dense precipitates were observed in Mo 41 wt% Re, resulting in large hardening and embrittlement.

本文言語English
ページ(範囲)902-906
ページ数5
ジャーナルJournal of Nuclear Materials
258-263
PART 1 A
DOI
出版ステータスPublished - 1998 10

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学

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