TY - JOUR
T1 - Effects of energetic heavy ion irradiation on hardness of Al-Mg-Si alloys
AU - Ueyama, D.
AU - Saitoh, Y.
AU - Hori, F.
AU - Kaneno, Y.
AU - Nishida, K.
AU - Dohi, K.
AU - Soneda, N.
AU - Semboshi, S.
AU - Iwase, A.
N1 - Funding Information:
This research was carried out under the collaboration program between Osaka Prefecture University and the Japan Atomic Energy Agency (JAEA). A part of this research was financially supported by Osaka Nuclear Science Association (ONSA) .
PY - 2013
Y1 - 2013
N2 - 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).
AB - 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).
KW - Al-Mg-Si
KW - Deposited energy density
KW - Ion-irradiation Vickers hardness
KW - Thermal aging
KW - Three-dimensional atom probe
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U2 - 10.1016/j.nimb.2013.04.067
DO - 10.1016/j.nimb.2013.04.067
M3 - Article
AN - SCOPUS:84886595063
SN - 0168-583X
VL - 314
SP - 107
EP - 111
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -