Structural features of plastic deformation in bulk metallic glasses

被引：22

作者：

Scudino, S. ^{[1
]}

Shahabi, H. Shakur ^{[1
]}

Stoica, M. ^{[1
]}

Kaban, I. ^{[1
,2
]}

Escher, B. ^{[1
,2
]}

Kuehn, U. ^{[1
]}

Vaughan, G. B. M. ^{[3
]}

Eckert, J. ^{[1
,2
]}

机构：

[1] IFW Dresden, Inst Komplexe Mat, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 03期

关键词：

ALLOYS;

D O I：

10.1063/1.4906305

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spatially resolved strain maps of a plastically deformed bulk metallic glass (BMG) have been created by using high-energy X-ray diffraction. The results reveal that plastic deformation creates a spatially heterogeneous atomic arrangement, consisting of strong compressive and tensile strain fields. In addition, significant shear strain is introduced in the samples. The analysis of the eigenvalues and eigenvectors of the strain tensor indicates that considerable structural anisotropy occurs in both the magnitude and direction of the strain. These features are in contrast to the behavior observed in elastically deformed BMGs and represent a distinctive structural sign of plastic deformation in metallic glasses. (C) 2015 AIP Publishing LLC.

引用

页数：4

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