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Study on Copper Precipitation under Electron Irradiation in FeCu Model Alloys by Using Vickers Hardness Measurements

Published online by Cambridge University Press:  01 February 2011

Shou Nakagawa ,
Fuminobu Hori ,
Hirotaka Ohno ,
Norito Ishikawa ,
Ryuichiro Oshima ,
Michiharu Kitagawa  and
Akihiro Iwase
Shou Nakagawa
Affiliation:
am0802@mtr.osakafu-u.ac.jp, Osaka Prefecture University, Department of Materials Science, 1-1, Gakuen-cho, Naka-ku, Sakai-shi, 599-8531, Japan
Fuminobu Hori
Affiliation:
horif@mtr.osakafu-u.ac.jp, Osaka Prefecture University, Sakai, 599-8531, Japan
Hirotaka Ohno
Affiliation:
bm0802@mtr.osakafu-u.ac.jp, Osaka Prefecture University, Sakai, 599-8531, Japan
Norito Ishikawa
Affiliation:
ishikawa.norito@jaea.go.jp, Japan Atomic Energy Agency, Tokai-mura, 319-1195, Japan
Ryuichiro Oshima
Affiliation:
oshima-r@mbh.nifty.com, Osaka Nuclear Science Association, Osaka, 541-0057, Japan
Michiharu Kitagawa
Affiliation:
kitagawa-m@mbh.nifty.com, Osaka Nuclear Science Association, Osaka, 541-0057, Japan
Akihiro Iwase
Affiliation:
iwase@mtr.osakafu-u.ac.jp, Osaka Prefecture University, Sakai, 599-8531, Japan
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Abstract

Three kinds of Fe-based model alloys, Fe-0.02wt%Cu, Fe-0.6wt%Cu, and Fe-1.2wt%Cu were irradiated with 2MeV electrons at 250°C. After the irradiation, the hardness was measured by using a micro Vickers hardness tester at room temperature. It was found that the hardness change by electron irradiation is proportional to the product of the copper concentration and the square root of electron fluence. The result is discussed in terms of the dispersion strengthening by Cu precipitates.

Keywords

electron irradiationhardnessalloy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1043: Symposium T – Materials Innovations for Next-Generation Nuclear Energy , 2007 , 1043-T09-04
Copyright
Copyright © Materials Research Society 2008

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References

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[3] Soneda, N., private communicationGoogle Scholar