Irradiation-induced creep in nanostructured Cu alloys

Kaiping Tai, Robert S. Averback, Pascal Bellon, Yinon Ashkenazy

Research output: Contribution to journalArticlepeer-review

Abstract

Irradiation-induced creep measurements were performed on pure Cu and Cu93.5W6.5. By using 1.8 MeV Kr+ irradiation of free-standing 300 nm films, nearly homogeneous damage in excess of 100 dpa could be obtained, yielding transient and steady-state creep regimes. The steady-state creep rate was proportional to the applied stress, yielding irradiation creep compliance of 1.2 and 0.32 × 10-4 MPa -1dpa-1 in Cu and Cu93.5W6.5, respectively. The microstructure of the two-phase alloy was highly stable but that of pure Cu was not.

Original languageEnglish (US)
Pages (from-to)163-166
Number of pages4
JournalScripta Materialia
Volume65
Issue number2
DOIs
StatePublished - Jul 2011

Keywords

  • Creep test
  • Implantation
  • Nanostructured materials
  • Thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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