Hardening of Al–Cu–Mg alloy by energetic ion irradiation

We irradiated Al–Cu–Mg alloy with 10 MeV iodine ions at room temperature and measured the surface microhardness. We analyzed the microstructure using a three-dimensional atom probe. Irradiation for 3.5 h led to an increase in hardness comparable to that obtained after 4 days of aging at 423 K. Preci...

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Bibliographic Details
Published in:	Journal of nuclear materials Vol. 408; no. 2; pp. 201 - 204
Main Authors:	Mitsuda, T., Kobayashi, I., Kosugi, S., Fujita, Nao, Saitoh, Y., Hori, F., Semboshi, S., Kaneno, Y., Nishida, K., Soneda, N., Iwase, A.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 15-01-2011 Elsevier
Subjects:	Applied sciences Controled nuclear fusion plants Energy Energy. Thermal use of fuels Exact sciences and technology Fission nuclear power plants Fuels Installations for energy generation and conversion: thermal and electrical energy Nuclear fuels Hardening Ion irradiation Ageing Surface temperature Aluminium Microstructure Microhardness Iodine Nuclear reactor
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Summary:	We irradiated Al–Cu–Mg alloy with 10 MeV iodine ions at room temperature and measured the surface microhardness. We analyzed the microstructure using a three-dimensional atom probe. Irradiation for 3.5 h led to an increase in hardness comparable to that obtained after 4 days of aging at 423 K. Precipitates of about 2.9 nm in diameter were distributed homogeneously over the irradiated region. The nanometer-sized precipitates produced by the irradiation caused a remarkable increase in hardness.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0022-3115 1873-4820
DOI:	10.1016/j.jnucmat.2010.10.013