Depth dependence of radiation hardening in 10 MeV 4 He + -ION bombarded molybdenum

Katunori Abe, Akira Hasegawa, Michio Kikuchi, Shotaro Morozumi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


By applying the technique of local dosimetry and micro-indentation, the micro-hardness depth profile is directly determined for molybdenum specimens, which are bombarded by 10 MeV 4 He + -ions at about 300°C to fluences of 1 × 10 20 ∼ 7 × 10 21 ion/m 2 . The depth profile is similar to the damage energy profile and has a sharp peak with a front plateau. The degree of radiation hardening at peak and plateau regions differs in fluence dependence and in post-irradiation annealing behavior. This may be attributed to the role of implanted helium. The influence on radiation hardening of material purity, cold work and alloying with zirconium is also studied.

Original languageEnglish
Pages (from-to)1169-1173
Number of pages5
JournalJournal of Nuclear Materials
Issue numberC
Publication statusPublished - 1981 Jan 1

ASJC Scopus subject areas

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


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