Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature

Chang Myeon Lee; Kyoung Won Park; Jae Chul Lee

doi:10.1016/j.scriptamat.2008.05.049

Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature

Chang Myeon Lee, Kyoung Won Park, Jae Chul Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

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

14 Citations (Scopus)

Abstract

This study examines the fundamental issue of whether an elastic shear stress imposed on amorphous alloys causes structural changes during quasistatic loading. In order to deliver elastic shear stress to the workpieces, a quasistatic shear deforming device was designed. With repeated application of elastic shear stress, the plasticity of the shear-deformed amorphous alloys increased while the yield strength decreased. These behaviors were analyzed from the perspective of the structural changes associated with the viscoelastic nature of amorphous alloys.

Original language	English
Pages (from-to)	802-805
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2008.05.049
Publication status	Published - 2008 Oct

Keywords

Bulk amorphous alloy
ECAP
Free volume
Plasticity

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2008.05.049

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title = "Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature",

abstract = "This study examines the fundamental issue of whether an elastic shear stress imposed on amorphous alloys causes structural changes during quasistatic loading. In order to deliver elastic shear stress to the workpieces, a quasistatic shear deforming device was designed. With repeated application of elastic shear stress, the plasticity of the shear-deformed amorphous alloys increased while the yield strength decreased. These behaviors were analyzed from the perspective of the structural changes associated with the viscoelastic nature of amorphous alloys.",

keywords = "Bulk amorphous alloy, ECAP, Free volume, Plasticity",

author = "Lee, {Chang Myeon} and Park, {Kyoung Won} and Lee, {Jae Chul}",

note = "Funding Information: This research was supported by grants from the Basic Research Program (R01-2004-000-10891-0) of the Ministry of Science and Technology, Korea.",

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AU - Lee, Chang Myeon

AU - Park, Kyoung Won

AU - Lee, Jae Chul

N1 - Funding Information: This research was supported by grants from the Basic Research Program (R01-2004-000-10891-0) of the Ministry of Science and Technology, Korea.

PY - 2008/10

Y1 - 2008/10

N2 - This study examines the fundamental issue of whether an elastic shear stress imposed on amorphous alloys causes structural changes during quasistatic loading. In order to deliver elastic shear stress to the workpieces, a quasistatic shear deforming device was designed. With repeated application of elastic shear stress, the plasticity of the shear-deformed amorphous alloys increased while the yield strength decreased. These behaviors were analyzed from the perspective of the structural changes associated with the viscoelastic nature of amorphous alloys.

AB - This study examines the fundamental issue of whether an elastic shear stress imposed on amorphous alloys causes structural changes during quasistatic loading. In order to deliver elastic shear stress to the workpieces, a quasistatic shear deforming device was designed. With repeated application of elastic shear stress, the plasticity of the shear-deformed amorphous alloys increased while the yield strength decreased. These behaviors were analyzed from the perspective of the structural changes associated with the viscoelastic nature of amorphous alloys.

KW - Bulk amorphous alloy

KW - ECAP

KW - Free volume

KW - Plasticity

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ER -

Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature

Abstract

Keywords

ASJC Scopus subject areas

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