Irradiation-induced creep in nanostructured Cu alloys

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


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 languageAmerican English
Pages (from-to)163-166
Number of pages4
JournalScripta Materialia
Issue number2
StatePublished - Jul 2011

Bibliographical note

Funding Information:
This research was supported by the US DOE-BES under grant DEFG02-05ER46217. It was carried out, in part, in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois, which are partially supported by the US Department of Energy under grants DE-FG02-07ER46453 and DE-FG02-07ER46471.


  • Creep test
  • Implantation
  • Nanostructured materials
  • Thin films


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