Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite

J. W. Qiao; Y. Zhang; P. K. Liaw; G. L. Chen

doi:10.1016/j.scriptamat.2009.08.044

Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite

J. W. Qiao
, Y. Zhang^*
, P. K. Liaw
, G. L. Chen

^*Corresponding author for this work

University of Science and Technology Beijing
University of Tennessee

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

Abstract

A dendrite/bulk-metallic-glass composite with a composition of Zr_58.5Ti_14.3Nb_5.2Cu_6.1Ni_4.9Be_11.0 exhibits room-temperature plasticity and a work-hardening capacity upon compressive loading. The improved plastic deformation is mainly characterized by the multiplication of shear bands. Severe lattice distortion and local amorphization in the dendrites, as well as pile-ups of dislocations close to the interface between the dendrites and the glass matrix upon straining, are jointly responsible for the accommodation of plastic strains and work hardening, which constitute the micromechanisms of the plastic deformation. Crown

Original language	English
Pages (from-to)	1087-1090
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2009.08.044
State	Published - Dec 2009
Externally published	Yes

Keywords

Bulk metallic glass (BMG)
Composites
Deformation structure
Shear band

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10.1016/j.scriptamat.2009.08.044

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title = "Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite",

abstract = "A dendrite/bulk-metallic-glass composite with a composition of Zr58.5Ti14.3Nb5.2Cu6.1Ni4.9Be11.0 exhibits room-temperature plasticity and a work-hardening capacity upon compressive loading. The improved plastic deformation is mainly characterized by the multiplication of shear bands. Severe lattice distortion and local amorphization in the dendrites, as well as pile-ups of dislocations close to the interface between the dendrites and the glass matrix upon straining, are jointly responsible for the accommodation of plastic strains and work hardening, which constitute the micromechanisms of the plastic deformation. Crown",

keywords = "Bulk metallic glass (BMG), Composites, Deformation structure, Shear band",

author = "Qiao, \{J. W.\} and Y. Zhang and Liaw, \{P. K.\} and Chen, \{G. L.\}",

year = "2009",

month = dec,

doi = "10.1016/j.scriptamat.2009.08.044",

language = "英语",

volume = "61",

pages = "1087--1090",

journal = "Scripta Materialia",

issn = "1359-6462",

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T1 - Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite

AU - Qiao, J. W.

AU - Zhang, Y.

AU - Liaw, P. K.

AU - Chen, G. L.

PY - 2009/12

Y1 - 2009/12

N2 - A dendrite/bulk-metallic-glass composite with a composition of Zr58.5Ti14.3Nb5.2Cu6.1Ni4.9Be11.0 exhibits room-temperature plasticity and a work-hardening capacity upon compressive loading. The improved plastic deformation is mainly characterized by the multiplication of shear bands. Severe lattice distortion and local amorphization in the dendrites, as well as pile-ups of dislocations close to the interface between the dendrites and the glass matrix upon straining, are jointly responsible for the accommodation of plastic strains and work hardening, which constitute the micromechanisms of the plastic deformation. Crown

AB - A dendrite/bulk-metallic-glass composite with a composition of Zr58.5Ti14.3Nb5.2Cu6.1Ni4.9Be11.0 exhibits room-temperature plasticity and a work-hardening capacity upon compressive loading. The improved plastic deformation is mainly characterized by the multiplication of shear bands. Severe lattice distortion and local amorphization in the dendrites, as well as pile-ups of dislocations close to the interface between the dendrites and the glass matrix upon straining, are jointly responsible for the accommodation of plastic strains and work hardening, which constitute the micromechanisms of the plastic deformation. Crown

KW - Bulk metallic glass (BMG)

KW - Composites

KW - Deformation structure

KW - Shear band

UR - https://www.scopus.com/pages/publications/70349439126

U2 - 10.1016/j.scriptamat.2009.08.044

DO - 10.1016/j.scriptamat.2009.08.044

M3 - 文章

AN - SCOPUS:70349439126

SN - 1359-6462

VL - 61

SP - 1087

EP - 1090

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite

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Keywords

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