TY - JOUR
T1 - Change in local structure and hardness in the amorphization process of Zr45Cu45Al10 alloy by heavy ion irradiation
AU - Hori, F.
AU - Morikuni, Y.
AU - Obayashi, H.
AU - Iwase, A.
AU - Matsui, T.
AU - Kaneno, Y.
AU - Wada, T.
AU - Kato, H.
AU - Ishikawa, N.
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant number 20K12482 . This work is a cooperative program (Proposal No. 202011-CRKEQ-0007 and 202112-CRKEQ-0031 ) of the Cooperative Research and Development Center for Advanced Materials, Institute for materials Research, Tohoku University . A part of the study was supported by Inter-organizational Atomic Energy Research Program in an academic collaborative agreement among JAEA, QST, and the University of Tokyo.
Funding Information:
This work was supported by JSPS KAKENHI Grant number 20K12482. This work is a cooperative program (Proposal No. 202011-CRKEQ-0007 and 202112-CRKEQ-0031) of the Cooperative Research and Development Center for Advanced Materials, Institute for materials Research, Tohoku University. A part of the study was supported by Inter-organizational Atomic Energy Research Program in an academic collaborative agreement among JAEA, QST, and the University of Tokyo.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/2
Y1 - 2023/2
N2 - Hypo-eutectic alloy of Zr45Cu45Al10 was irradiated with 16 MeV and 200 MeV Au ions at room temperature. Before and after irradiation, effects of the irradiation on the structure and hardness of the alloy were investigated by using X-ray diffraction (XRD), Extended X-ray absorption fine structure (EXAFS), micro-Vickers hardness and positron annihilation measurements. As a result of the irradiation, amorphization was confirmed for both energies of the irradiations, but the behavior of hardness change strongly depends on the irradiation energy. That is, the hardness once decreases and increases with increasing the fluence in the case of 16 MeV irradiation, but in the case of 200 MeV irradiation, no decreasing trend was observed. The EXAFS measurement shows that the changing ratio of Cu-Cu and Cu-Zr bonds around each Cu atom is different between low energy and high energy Au ion irradiation.
AB - Hypo-eutectic alloy of Zr45Cu45Al10 was irradiated with 16 MeV and 200 MeV Au ions at room temperature. Before and after irradiation, effects of the irradiation on the structure and hardness of the alloy were investigated by using X-ray diffraction (XRD), Extended X-ray absorption fine structure (EXAFS), micro-Vickers hardness and positron annihilation measurements. As a result of the irradiation, amorphization was confirmed for both energies of the irradiations, but the behavior of hardness change strongly depends on the irradiation energy. That is, the hardness once decreases and increases with increasing the fluence in the case of 16 MeV irradiation, but in the case of 200 MeV irradiation, no decreasing trend was observed. The EXAFS measurement shows that the changing ratio of Cu-Cu and Cu-Zr bonds around each Cu atom is different between low energy and high energy Au ion irradiation.
KW - Amorphous
KW - Hardness
KW - Heavy ion irradiation
KW - Local atomic bonding
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U2 - 10.1016/j.nimb.2022.11.007
DO - 10.1016/j.nimb.2022.11.007
M3 - Article
AN - SCOPUS:85143530933
SN - 0168-583X
VL - 535
SP - 11
EP - 14
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 -