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Formation of Nano-Sized Crystals During Plastic Deformation in Amorphous Alloys

Published online by Cambridge University Press:  14 March 2011

A. Ogura ,
M. Sato ,
R. Tarumi ,
M. Shimojo ,
K. Takashima  and
Y. Higo
A. Ogura
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan, aogura@pi.titech.ac.jp
M. Sato
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
R. Tarumi
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
M. Shimojo
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
K. Takashima
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
Y. Higo
Affiliation:
Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
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Abstract

Microstructural change in deformation bands was observed in a Ni-P amorphous alloy using transmission electron microscopy (TEM). Bending strain was applied to a micro-sized cantilever beam specimen. A TEM specimen was prepared from the micro-sized specimen with keeping the information on the relationship between the deformed direction and the specimen orientation. TEM observation in deformation bands revealed that plastic deformation induces the precipitation of nanocrystalline Ni particles. An orientation relationship between deformation direction and crystal orientation was obtained, that is, a (111) plane of all crystalline particles are parallel to the side surface of the specimen.

Keywords

nano structureamorphous alloyplastic deformationcrystallizationTEM observation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 634: Symposium B – Structure and Mechanical Properties of Nanophase Materials-Theory & Computer Simulations vs. Experiment , 2000 , B1.10.1
Copyright
Copyright © Materials Research Society 2001

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References

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