Plasticity criterion for bulk amorphous alloys

Seok Woo Lee; Sang Chul Lee; Jae Chul Lee

doi:10.1016/j.msea.2007.05.036

Plasticity criterion for bulk amorphous alloys

Seok Woo Lee, Sang Chul Lee, Jae Chul Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

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

Abstract

A plasticity criterion (p-parameter), which enables the prediction of the plasticity of monolithic bulk amorphous alloys, is proposed. This criterion, which is defined as |λ - 0.18|ΔT_x/T_x, takes into account the local packing state and structural stability characterized by the thermal properties of amorphous alloys. Bulk amorphous alloys with large p-values have more loosely packed and mechanically less stable microstructures, so that local structural evolution including nanocrystallization is promoted during the process of loading, leading to enhanced. The proposed criterion can be used as a means for predicting the plasticity of monolithic bulk amorphous alloys, which are devoid of a minor element with positive mixing enthalpy.

Original language	English
Pages (from-to)	344-349
Number of pages	6
Journal	Materials Science and Engineering A
Volume	477
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.05.036
Publication status	Published - 2008 Mar 25

Keywords

Bulk amorphous alloy
Nanocrystallization
Plasticity

ASJC Scopus subject areas

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

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10.1016/j.msea.2007.05.036

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title = "Plasticity criterion for bulk amorphous alloys",

abstract = "A plasticity criterion (p-parameter), which enables the prediction of the plasticity of monolithic bulk amorphous alloys, is proposed. This criterion, which is defined as |λ - 0.18|ΔTx/Tx, takes into account the local packing state and structural stability characterized by the thermal properties of amorphous alloys. Bulk amorphous alloys with large p-values have more loosely packed and mechanically less stable microstructures, so that local structural evolution including nanocrystallization is promoted during the process of loading, leading to enhanced. The proposed criterion can be used as a means for predicting the plasticity of monolithic bulk amorphous alloys, which are devoid of a minor element with positive mixing enthalpy.",

keywords = "Bulk amorphous alloy, Nanocrystallization, Plasticity",

author = "Lee, {Seok Woo} and Lee, {Sang Chul} and Lee, {Jae Chul}",

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AU - Lee, Jae Chul

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N2 - A plasticity criterion (p-parameter), which enables the prediction of the plasticity of monolithic bulk amorphous alloys, is proposed. This criterion, which is defined as |λ - 0.18|ΔTx/Tx, takes into account the local packing state and structural stability characterized by the thermal properties of amorphous alloys. Bulk amorphous alloys with large p-values have more loosely packed and mechanically less stable microstructures, so that local structural evolution including nanocrystallization is promoted during the process of loading, leading to enhanced. The proposed criterion can be used as a means for predicting the plasticity of monolithic bulk amorphous alloys, which are devoid of a minor element with positive mixing enthalpy.

AB - A plasticity criterion (p-parameter), which enables the prediction of the plasticity of monolithic bulk amorphous alloys, is proposed. This criterion, which is defined as |λ - 0.18|ΔTx/Tx, takes into account the local packing state and structural stability characterized by the thermal properties of amorphous alloys. Bulk amorphous alloys with large p-values have more loosely packed and mechanically less stable microstructures, so that local structural evolution including nanocrystallization is promoted during the process of loading, leading to enhanced. The proposed criterion can be used as a means for predicting the plasticity of monolithic bulk amorphous alloys, which are devoid of a minor element with positive mixing enthalpy.

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Plasticity criterion for bulk amorphous alloys

Abstract

Keywords

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