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Plastic Deformation-Induced Nanocrystalline Aluminum in Al-Based Amorphous Alloys

Published online by Cambridge University Press:  15 February 2011

H. Chen ,
Y. He ,
G. J. Shiflet  and
S. J. Poon
H. Chen
Affiliation:
Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22903, U.S.A.
Y. He
Affiliation:
Department of Physics, University of Virginia, Charlottesville, VA 22903, U.S.A.
G. J. Shiflet
Affiliation:
Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22903, U.S.A.
S. J. Poon
Affiliation:
Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22903, U.S.A.
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Abstract

We report the first direct observation of crystallization induced in the slipped planes of aluminum based amorphous alloys by bending the amorphous ribbons. Nanometer-sized crystalline precipitates are found exclusively within a thin layer (shear band) in the slipped planes extending across the deformed amorphous alloy ribbons. It is also found that the nanocrystalline aluminum can be produced by ball-Milling. It is likely that local atomic rearrangements within the shear bands create the nanocrystals which appear after plastic deformation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 321: Symposium E – Crystallization and Related Phenomena in Amorphous Materials—Ceramics, Metals, Polymers, and Semiconductors , 1993 , 251
Copyright
Copyright © Materials Research Society 1994

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References

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