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Electron Irradiation Induced Crystal-to-Amorphous-to-Crystal (C-A-C) Transition in Intermetallic Compounds

Published online by Cambridge University Press:  01 February 2011

Takeshi Nagase ,
Kazuya Takizawa ,
Akihiro Nino  and
Yukichi Umakoshi
Takeshi Nagase
Affiliation:
t-nagase@uhvem.osaka-u.ac.jp, Osaka University, Research Center for Ultra-High Voltage Electron Microscopy, Ibaraki, Japan
Kazuya Takizawa
Affiliation:
kazuya.takizawa@mat.eng.osaka-u.ac.jp, Osaka University, Division of Materials and Manufacturing Science, Graduate School of Engineering, Suita, Osaka, Japan
Akihiro Nino
Affiliation:
nino@ipc.akita-u.ac.jp, Akita University, Department of Materials Science and Engineering, Faculty of Engineering and Resource Science, Akita, AKITA, Japan
Yukichi Umakoshi
Affiliation:
UMAKOSHI.Yukichi@nims.go.jp, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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Abstract

Mechanical atomic displacement in intermetallic compounds can be introduced by var-ious processes such as severe plastic deformation, mechanical milling and electron irradiation, resulting in the crystal-to-amorphous (C-A) transition and amorphous-to-crystal (A-C) transition in some alloy systems. Recently, unique atomic displacement-induced-phase transitions contain-ing both amorphization and crystallization was found: a crystal-to-amorphous-to-crystal (C-A-C) transition under electron irradiation and a cyclic C-A transition during mechanical milling. The features and predicting factors of alloy systems which undergo C-A-C transition under MeV electron irradiation are discussed based upon the analysis of experimental data reported to date in intermetallic compounds irradiated by High voltage electron microscope (HVEM).

Keywords

amorphouselectron irradiationmetal
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U05-49
Copyright
Copyright © Materials Research Society 2009

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References

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