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

Department of Materials Science and Engineering

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 & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	477
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.05.036
Publication status	Published - 2008 Mar 25

Bibliographical 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.

Keywords

Bulk amorphous alloy
Nanocrystallization
Plasticity

ASJC Scopus subject areas

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

Access to Document

10.1016/j.msea.2007.05.036

Cite this

@article{3d468213b8ab40c9a6bf9c923e610847,

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}",

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. ",

year = "2008",

month = mar,

day = "25",

doi = "10.1016/j.msea.2007.05.036",

language = "English",

volume = "477",

pages = "344--349",

journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

issn = "0921-5093",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Plasticity criterion for bulk amorphous alloys

AU - Lee, Seok Woo

AU - Lee, Sang Chul

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 - 2008/3/25

Y1 - 2008/3/25

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.

KW - Bulk amorphous alloy

KW - Nanocrystallization

KW - Plasticity

UR - http://www.scopus.com/inward/record.url?scp=39349105815&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2007.05.036

DO - 10.1016/j.msea.2007.05.036

M3 - Article

AN - SCOPUS:39349105815

SN - 0921-5093

VL - 477

SP - 344

EP - 349

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

IS - 1-2

ER -

Plasticity criterion for bulk amorphous alloys

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this