Irradiation effect of swift heavy ion for Zr50Cu 40Al10 bulk glassy alloy

Naoto Onodera; Akito Ishii; Kouji Ishii; Akihiro Iwase; Yoshihiko Yokoyama; Yuichi Saitoh; Norito Ishikawa; Atsushi Yabuuchi; Fuminobu Hori

doi:10.1016/j.nimb.2013.04.034

Irradiation effect of swift heavy ion for Zr₅₀Cu ₄₀Al₁₀ bulk glassy alloy

Naoto Onodera, Akito Ishii, Kouji Ishii, Akihiro Iwase, Yoshihiko Yokoyama, Yuichi Saitoh, Norito Ishikawa, Atsushi Yabuuchi, Fuminobu Hori

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

It has been reported that heavy ion irradiation causes softening in some cases of Zr-based bulk metallic glass alloys. However, the fundamental mechanisms of such softening have not been clarified yet. In this study, Zr ₅₀Cu₄₀Al₁₀ bulk glassy alloys were irradiated with heavy ions of 10 MeV I at room temperature. The maximum fluence was 3 × 10¹⁴ ions/cm². The positron annihilation measurements have performed before and after irradiation to investigate changes in free volume. We discuss the relationship between the energy loss and local open volume change after 10 MeV I irradiation compared with those obtained for 200 MeV Xe and 5 MeV Al. The energy loss analysis in ion irradiation for the positron lifetime has revealed that the decreasing trend of positron lifetime is well expressed as a function of total electronic energy deposition rather than total elastic energy deposition. It means that the positron lifetime change by the irradiation has a relationship with the inelastic collisions with electrons during heavy ion irradiation.

Original language	English
Pages (from-to)	122-124
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	314
DOIs	https://doi.org/10.1016/j.nimb.2013.04.034
Publication status	Published - 2013
Externally published	Yes

Keywords

Amorphous
Free volume
Positron annihilation spectroscopy
Radiation damage
Stopping power

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2013.04.034

Cite this

@article{cc52a9856185452f9ec7da9369d569f6,

title = "Irradiation effect of swift heavy ion for Zr50Cu 40Al10 bulk glassy alloy",

abstract = "It has been reported that heavy ion irradiation causes softening in some cases of Zr-based bulk metallic glass alloys. However, the fundamental mechanisms of such softening have not been clarified yet. In this study, Zr 50Cu40Al10 bulk glassy alloys were irradiated with heavy ions of 10 MeV I at room temperature. The maximum fluence was 3 × 1014 ions/cm2. The positron annihilation measurements have performed before and after irradiation to investigate changes in free volume. We discuss the relationship between the energy loss and local open volume change after 10 MeV I irradiation compared with those obtained for 200 MeV Xe and 5 MeV Al. The energy loss analysis in ion irradiation for the positron lifetime has revealed that the decreasing trend of positron lifetime is well expressed as a function of total electronic energy deposition rather than total elastic energy deposition. It means that the positron lifetime change by the irradiation has a relationship with the inelastic collisions with electrons during heavy ion irradiation.",

keywords = "Amorphous, Free volume, Positron annihilation spectroscopy, Radiation damage, Stopping power",

author = "Naoto Onodera and Akito Ishii and Kouji Ishii and Akihiro Iwase and Yoshihiko Yokoyama and Yuichi Saitoh and Norito Ishikawa and Atsushi Yabuuchi and Fuminobu Hori",

note = "Funding Information: Authors would like to express cordial thanks to technical staffs for ion irradiation at Japan Atomic Energy Agency. This work was also performed under the inter-university cooperative research program of the Advanced Research Center of Metallic Glasses, Institute for Materials Research, Tohoku University. ",

year = "2013",

doi = "10.1016/j.nimb.2013.04.034",

language = "English",

volume = "314",

pages = "122--124",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

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TY - JOUR

T1 - Irradiation effect of swift heavy ion for Zr50Cu 40Al10 bulk glassy alloy

AU - Onodera, Naoto

AU - Ishii, Akito

AU - Ishii, Kouji

AU - Iwase, Akihiro

AU - Yokoyama, Yoshihiko

AU - Saitoh, Yuichi

AU - Ishikawa, Norito

AU - Yabuuchi, Atsushi

AU - Hori, Fuminobu

N1 - Funding Information: Authors would like to express cordial thanks to technical staffs for ion irradiation at Japan Atomic Energy Agency. This work was also performed under the inter-university cooperative research program of the Advanced Research Center of Metallic Glasses, Institute for Materials Research, Tohoku University.

PY - 2013

Y1 - 2013

N2 - It has been reported that heavy ion irradiation causes softening in some cases of Zr-based bulk metallic glass alloys. However, the fundamental mechanisms of such softening have not been clarified yet. In this study, Zr 50Cu40Al10 bulk glassy alloys were irradiated with heavy ions of 10 MeV I at room temperature. The maximum fluence was 3 × 1014 ions/cm2. The positron annihilation measurements have performed before and after irradiation to investigate changes in free volume. We discuss the relationship between the energy loss and local open volume change after 10 MeV I irradiation compared with those obtained for 200 MeV Xe and 5 MeV Al. The energy loss analysis in ion irradiation for the positron lifetime has revealed that the decreasing trend of positron lifetime is well expressed as a function of total electronic energy deposition rather than total elastic energy deposition. It means that the positron lifetime change by the irradiation has a relationship with the inelastic collisions with electrons during heavy ion irradiation.

AB - It has been reported that heavy ion irradiation causes softening in some cases of Zr-based bulk metallic glass alloys. However, the fundamental mechanisms of such softening have not been clarified yet. In this study, Zr 50Cu40Al10 bulk glassy alloys were irradiated with heavy ions of 10 MeV I at room temperature. The maximum fluence was 3 × 1014 ions/cm2. The positron annihilation measurements have performed before and after irradiation to investigate changes in free volume. We discuss the relationship between the energy loss and local open volume change after 10 MeV I irradiation compared with those obtained for 200 MeV Xe and 5 MeV Al. The energy loss analysis in ion irradiation for the positron lifetime has revealed that the decreasing trend of positron lifetime is well expressed as a function of total electronic energy deposition rather than total elastic energy deposition. It means that the positron lifetime change by the irradiation has a relationship with the inelastic collisions with electrons during heavy ion irradiation.

KW - Amorphous

KW - Free volume

KW - Positron annihilation spectroscopy

KW - Radiation damage

KW - Stopping power

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