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The more shearing, the thicker shear band and heat-affected zone in bulk metallic glass

Published online by Cambridge University Press:  31 January 2011

H. Guo ,
J. Wen ,
N.M. Xiao ,
Z.F. Zhang  and
M.L. Sui
H. Guo
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
J. Wen
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
N.M. Xiao
Affiliation:
Department for Special Environment Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Z.F. Zhang
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
M.L. Sui*
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
*
a)Address all correspondence to this author. email: mlsui@imr.ac.cn
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Abstract

In a compression test for a Zr-based bulk metallic glass, a dominant shear band was preserved before fracture by a cylindrical stopper. A heat-affected zone (HAZ) ∼10 μm thick together with shear band was discovered in the center of the deformed sample by preferential ion milling. By using a low aspect ratio sample for compression, diverse micron-scaled HAZs among multiple shear bands were also revealed. Based on above experimental results and the isothermal source model, it was found that the thickness of shear band and its HAZ increased continuously with the progression of shear deformation.

Keywords

AlloyAmorphousTransmission electron microscopy (TEM)
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 8 , August 2008 , pp. 2133 - 2138
Copyright
Copyright © Materials Research Society 2008

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