Work

Behavior of free volume in ZrCuAl bulk metallic glass after irradiation

Year: 2010

Type: conference-paper

Abstract: Free volumes in Zr 50 Cu 40 Al 10 bulk metallic glasses irradiated by 100 MeV and 200 MeV Xe ions and 2 MeV electrons at room temperature have been investigated by using positron annihilation techniques, the micro Vickers hardness and X-ray diffraction measurements. No crystallization took place due to both ion and electron irradiations. The coincidence Doppler broadening spectra of annihilation gamma rays also remained unchanged by ion and electron irradiation. Meanwhile, an increase and a decrease of positron lifetimes after electron and ion irradiation, respectively, were observed. This suggests the structural modification of free volumes. The response of positron lifetime to ion and electron irradiations may be connected with the tendency of hardness.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/225/1/012010

Authors: Yuka Fukumoto, Akito Ishii, Akihiro Iwase, Yoshihiko Yokoyama, Fuminobu Hori

Institutions: Osaka Prefecture University, Tohoku University, Institute for Materials Research, Tohoku University

Language: English

Topic: Muon and positron interactions and applications

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: Japan Atomic Energy Agency, Institute for Materials Research, Tohoku University, Division of Materials Research

OpenAlex ID: W1982929093

FWCI: 4.82

Cites: 14

Cited by: 13

Related to: 10