A parameter governing the plasticity of Cu-Zr containing bulk metallic glasses

Seok Woo Lee; Chang Myun Lee; Jae Pyoung Ahn; Yu Chan Kim; Jae Chul Lee

doi:10.1016/j.msea.2006.02.306

A parameter governing the plasticity of Cu-Zr containing bulk metallic glasses

Seok Woo Lee, Chang Myun Lee, Jae Pyoung Ahn, Yu Chan Kim, Jae Chul Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

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

10 Citations (Scopus)

Abstract

Experiments were conducted on bulk metallic glasses (BMGs) to identify a crucial factor that governs the degree of the plasticity shown by these alloys. It was found that in situ formation of nanocrystallites, which is known as the deformation-induced nanocrystallization, play a key role in providing initiation sites of the local deformation, indicating that a high degree of plasticity could be achieved from BMGs in which deformation facilitates nanocrystallization. The degree of this deformation-induced nanocrystallization was found to be strongly dependent on the activation energy for crystallization. In this paper, we report that a factor governing the plasticity of BMGs lies in the activation energy for crystallization.

Original language	English
Pages (from-to)	172-175
Number of pages	4
Journal	Materials Science and Engineering A
Volume	448-451
DOIs	https://doi.org/10.1016/j.msea.2006.02.306
Publication status	Published - 2007 Mar 25

Bibliographical note

Funding Information:
This research was supported by a grant (05K1501-01210) from ‘Center for Nanostructured Materials Technology’ under ‘21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, and the Basic Research Program (R01-2004-000-10891-0) of Korea Science and Engineering Foundation, Republic of Korea.

Keywords

Bulk metallic glass
Deformation-induced crystallization
Plasticity

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.02.306

Cite this

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title = "A parameter governing the plasticity of Cu-Zr containing bulk metallic glasses",

abstract = "Experiments were conducted on bulk metallic glasses (BMGs) to identify a crucial factor that governs the degree of the plasticity shown by these alloys. It was found that in situ formation of nanocrystallites, which is known as the deformation-induced nanocrystallization, play a key role in providing initiation sites of the local deformation, indicating that a high degree of plasticity could be achieved from BMGs in which deformation facilitates nanocrystallization. The degree of this deformation-induced nanocrystallization was found to be strongly dependent on the activation energy for crystallization. In this paper, we report that a factor governing the plasticity of BMGs lies in the activation energy for crystallization.",

keywords = "Bulk metallic glass, Deformation-induced crystallization, Plasticity",

author = "Lee, {Seok Woo} and Lee, {Chang Myun} and Ahn, {Jae Pyoung} and Kim, {Yu Chan} and Lee, {Jae Chul}",

note = "Funding Information: This research was supported by a grant (05K1501-01210) from {\textquoteleft}Center for Nanostructured Materials Technology{\textquoteright} under {\textquoteleft}21st Century Frontier R&D Programs{\textquoteright} of the Ministry of Science and Technology, and the Basic Research Program (R01-2004-000-10891-0) of Korea Science and Engineering Foundation, Republic of Korea. ",

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doi = "10.1016/j.msea.2006.02.306",

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AU - Lee, Seok Woo

AU - Lee, Chang Myun

AU - Ahn, Jae Pyoung

AU - Kim, Yu Chan

AU - Lee, Jae Chul

N1 - Funding Information: This research was supported by a grant (05K1501-01210) from ‘Center for Nanostructured Materials Technology’ under ‘21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, and the Basic Research Program (R01-2004-000-10891-0) of Korea Science and Engineering Foundation, Republic of Korea.

PY - 2007/3/25

Y1 - 2007/3/25

N2 - Experiments were conducted on bulk metallic glasses (BMGs) to identify a crucial factor that governs the degree of the plasticity shown by these alloys. It was found that in situ formation of nanocrystallites, which is known as the deformation-induced nanocrystallization, play a key role in providing initiation sites of the local deformation, indicating that a high degree of plasticity could be achieved from BMGs in which deformation facilitates nanocrystallization. The degree of this deformation-induced nanocrystallization was found to be strongly dependent on the activation energy for crystallization. In this paper, we report that a factor governing the plasticity of BMGs lies in the activation energy for crystallization.

AB - Experiments were conducted on bulk metallic glasses (BMGs) to identify a crucial factor that governs the degree of the plasticity shown by these alloys. It was found that in situ formation of nanocrystallites, which is known as the deformation-induced nanocrystallization, play a key role in providing initiation sites of the local deformation, indicating that a high degree of plasticity could be achieved from BMGs in which deformation facilitates nanocrystallization. The degree of this deformation-induced nanocrystallization was found to be strongly dependent on the activation energy for crystallization. In this paper, we report that a factor governing the plasticity of BMGs lies in the activation energy for crystallization.

KW - Bulk metallic glass

KW - Deformation-induced crystallization

KW - Plasticity

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DO - 10.1016/j.msea.2006.02.306

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VL - 448-451

SP - 172

EP - 175

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

A parameter governing the plasticity of Cu-Zr containing bulk metallic glasses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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