Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy

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Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy. / Nagai, Yasuyoshi; Takadate, K.; Tang, Zikang; Ohkubo, H.; Sunaga, H.; Takizawa, H.; Hasegawa, M.

In: Journal of Physics: Conference Series, Vol. 265, 012007, 2011, p. 1-7.

Research output: Contribution to journalArticle

Harvard

Nagai, Y, Takadate, K, Tang, Z, Ohkubo, H, Sunaga, H, Takizawa, H & Hasegawa, M 2011, 'Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy', Journal of Physics: Conference Series, vol. 265, 012007, pp. 1-7. https://doi.org/10.1088/1742-6596/265/1/012007/meta

APA

Nagai, Y., Takadate, K., Tang, Z., Ohkubo, H., Sunaga, H., Takizawa, H., & Hasegawa, M. (2011). Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy. Journal of Physics: Conference Series, 265, 1-7. [012007]. https://doi.org/10.1088/1742-6596/265/1/012007/meta

Vancouver

Nagai Y, Takadate K, Tang Z, Ohkubo H, Sunaga H, Takizawa H et al. Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy. Journal of Physics: Conference Series. 2011;265:1-7. 012007. https://doi.org/10.1088/1742-6596/265/1/012007/meta

Author

Nagai, Yasuyoshi ; Takadate, K. ; Tang, Zikang ; Ohkubo, H. ; Sunaga, H. ; Takizawa, H. ; Hasegawa, M. / Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy. In: Journal of Physics: Conference Series. 2011 ; Vol. 265. pp. 1-7.

Bibtex - Download

@article{c8289c4ee8034e0aa3832f5fc6412653,
title = "Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy",
abstract = "Electron- and neutron-irradiation effects on dilute Fe-Cu model alloys of nuclear reactor pressure vessel steels are studied by positron annihilation spectroscopy. We have found that, not only by high-dose neutron-irradiation but also by low-dose electron-irradiation, the aggregation of Cu atoms and vacancies takes place and the ultrafine Cu precipitates are formed after post-irradiation annealing at 400°C. In spite of large difference in the irradiation doses between the electron- and the neutron-irradiated samples, no significant difference is observed in the isochronal annealing behaviour above 400°C of positron annihilation and micro-hardness, indicating that small amount of extra vacancies enhance the aggregation of Cu atoms in Fe during the annealing-out process of the vacancies.",
keywords = "Positron annihalation spectroscopy",
author = "Yasuyoshi Nagai and K. Takadate and Zikang Tang and H. Ohkubo and H. Sunaga and H. Takizawa and M. Hasegawa",
year = "2011",
doi = "10.1088/1742-6596/265/1/012007/meta",
language = "English",
volume = "265",
pages = "1--7",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP - IOP Publishing",

}

RIS - Download

TY - JOUR

T1 - Effect of electron- and neutron-irradiation on Fe-Cu model alloys studied by positron annihilation spectroscopy

AU - Nagai, Yasuyoshi

AU - Takadate, K.

AU - Tang, Zikang

AU - Ohkubo, H.

AU - Sunaga, H.

AU - Takizawa, H.

AU - Hasegawa, M.

PY - 2011

Y1 - 2011

N2 - Electron- and neutron-irradiation effects on dilute Fe-Cu model alloys of nuclear reactor pressure vessel steels are studied by positron annihilation spectroscopy. We have found that, not only by high-dose neutron-irradiation but also by low-dose electron-irradiation, the aggregation of Cu atoms and vacancies takes place and the ultrafine Cu precipitates are formed after post-irradiation annealing at 400°C. In spite of large difference in the irradiation doses between the electron- and the neutron-irradiated samples, no significant difference is observed in the isochronal annealing behaviour above 400°C of positron annihilation and micro-hardness, indicating that small amount of extra vacancies enhance the aggregation of Cu atoms in Fe during the annealing-out process of the vacancies.

AB - Electron- and neutron-irradiation effects on dilute Fe-Cu model alloys of nuclear reactor pressure vessel steels are studied by positron annihilation spectroscopy. We have found that, not only by high-dose neutron-irradiation but also by low-dose electron-irradiation, the aggregation of Cu atoms and vacancies takes place and the ultrafine Cu precipitates are formed after post-irradiation annealing at 400°C. In spite of large difference in the irradiation doses between the electron- and the neutron-irradiated samples, no significant difference is observed in the isochronal annealing behaviour above 400°C of positron annihilation and micro-hardness, indicating that small amount of extra vacancies enhance the aggregation of Cu atoms in Fe during the annealing-out process of the vacancies.

KW - Positron annihalation spectroscopy

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/39153036

U2 - 10.1088/1742-6596/265/1/012007/meta

DO - 10.1088/1742-6596/265/1/012007/meta

M3 - Article

VL - 265

SP - 1

EP - 7

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

M1 - 012007

ER -

ID: 6869183