The microstructural evolution of precipitate strengthened copper alloys by varying temperature irradiation

Y. Sumino, H. Watanabe, N. Yoshida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To investigate the effect of varying temperature irradiation on oxide dispersion strengthened copper alloy (GlidCop CuAl15), heavy ion irradiation was carried out by using 2.4 MeV Cu ions up to 30 dpa in the temperature range of 473-673 K. TEM observation of CuAl15 before irradiation showed high density of small alumina particles and dislocations. After 30 dpa at 673 K constant temperature irradiation, voids were formed. However, voids formation was strongly depended on grain size. On the other hand, by a varying temperature irradiation, the number density of voids was decreased as compared with that of 673 K constant temperature irradiation. The result of CuAl15 is consistent with our previous studies of pure copper irradiated under same irradiation conditions.

Original languageEnglish
Pages (from-to)654-657
Number of pages4
JournalJournal of Nuclear Materials
Volume386-388
Issue numberC
DOIs
Publication statusPublished - Apr 30 2009

Fingerprint

copper alloys
Copper alloys
Microstructural evolution
Precipitates
precipitates
Irradiation
irradiation
voids
Temperature
temperature
Heavy Ions
Aluminum Oxide
Ion bombardment
ion irradiation
Heavy ions
Oxides
Copper
heavy ions
Alumina
aluminum oxides

All Science Journal Classification (ASJC) codes

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

Cite this

The microstructural evolution of precipitate strengthened copper alloys by varying temperature irradiation. / Sumino, Y.; Watanabe, H.; Yoshida, N.

In: Journal of Nuclear Materials, Vol. 386-388, No. C, 30.04.2009, p. 654-657.

Research output: Contribution to journalArticle

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