Irradiation-induced creep in nanostructured Cu alloys

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

doi:10.1016/j.scriptamat.2011.04.001

Irradiation-induced creep in nanostructured Cu alloys

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

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Irradiation-induced creep measurements were performed on pure Cu and Cu_93.5W_6.5. 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 Cu_93.5W_6.5, respectively. The microstructure of the two-phase alloy was highly stable but that of pure Cu was not.

Original language	English
Pages (from-to)	163-166
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2011.04.001
State	Published - 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.

Keywords

Creep test
Implantation
Nanostructured materials
Thin films

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10.1016/j.scriptamat.2011.04.001

Cite this

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title = "Irradiation-induced creep in nanostructured Cu alloys",

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.",

keywords = "Creep test, Implantation, Nanostructured materials, Thin films",

author = "Kaiping Tai and Averback, {Robert S.} and Pascal Bellon and Yinon Ashkenazy",

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.",

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AU - Tai, Kaiping

AU - Averback, Robert S.

AU - Bellon, Pascal

AU - Ashkenazy, Yinon

N1 - 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.

PY - 2011/7

Y1 - 2011/7

N2 - 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.

AB - 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.

KW - Creep test

KW - Implantation

KW - Nanostructured materials

KW - Thin films

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Irradiation-induced creep in nanostructured Cu alloys

Abstract

Bibliographical note

Keywords

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