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

  • Shou Nakagawa (a1), Fuminobu Hori (a2), Hirotaka Ohno (a3), Norito Ishikawa (a4), Ryuichiro Oshima (a5), Michiharu Kitagawa (a6) and Akihiro Iwase (a7)...

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.

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[1] Hawthorne, J. R., ASTM STP, 484(1970), 96.
[2] Lucas, G. E., Odette, G. R., Lombrozo, P.M., Sheckherd, J. W., in “Effects of Radiation on Materials”, Proc. 12th Int. Symp. ASTM STP, 870 Garner, F. A. and Perrin, J. S. Eds., (ASTM, Philadelphia, 1985) 900930.
[3] Soneda, N., private communication

Keywords

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

  • Shou Nakagawa (a1), Fuminobu Hori (a2), Hirotaka Ohno (a3), Norito Ishikawa (a4), Ryuichiro Oshima (a5), Michiharu Kitagawa (a6) and Akihiro Iwase (a7)...

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