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Effects of energetic heavy ion irradiation on hardness of Al–Mg–Si alloys

Authors :
Kenji Nishida
Yasuyuki Kaneno
Satoshi Semboshi
Akihiro Iwase
Fuminobu Hori
Kenji Dohi
Yuichi Saitoh
D. Ueyama
Naoki Soneda
Source :
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 314:107-111
Publication Year :
2013
Publisher :
Elsevier BV, 2013.

Abstract

Al–Mg–Si alloys were irradiated with 5.4 MeV Al ions, 7.3 MeV Fe ions, 10 MeV I ions, and 16 MeV Au ions at room temperature and the Vickers microhardness was measured. The hardness of Al–Mg–Si alloys increases with increasing the ion fluence. In a viewpoint of ion fluence, hardness change of the Al alloys is different by the kind of irradiating ions. But, in a viewpoint of the density of elastically deposited energy, the effect of the four kinds of them on hardness is almost the same. This result means that the effect of irradiation on hardness of Al–Mg–Si alloys is dominated by the elastically deposited energy. The microstructure of the ion-irradiated specimens were investigated by means of three-dimensional atom probe (3DAP). The experimental result was compared with the microstructure and the hardness for thermally aged specimens. We also discuss the difference in ion-irradiation induced change in hardness between Al–Mg–Si alloys and Al–Cu–Mg alloys (duralumin).

Details

ISSN :
0168583X
Volume :
314
Database :
OpenAIRE
Journal :
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Accession number :
edsair.doi...........8a54c596783281ef159f53e99be6f3d6
Full Text :
https://doi.org/10.1016/j.nimb.2013.04.067