Large plasticity of a Mg42Li23Cu25Y10 multiphase composite

Sergio Gonzalez Sanchez; Dimitri Louzguine-Luzgin; John Perepezko; Akihisa Inoue

doi:10.1016/j.msea.2011.03.093

Large plasticity of a Mg42Li23Cu25Y10 multiphase composite

Sergio Gonzalez Sanchez, Dimitri Louzguine-Luzgin, John Perepezko, Akihisa Inoue

Mechanical and Construction Engineering Department

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

2 Citations (Scopus)

Abstract

A novel Mg42Li23Cu25Y10 nanostructure-bcc ductile phase composite containing a Mg2Cu phase and amorphous zones has been obtained by injection casting. This alloy exhibits a large plastic engineering strain of 83% and plastic true strain of 177% with a flow stress at 4.3% deformation of 425 MPa. During compression, the deformation of the nanometer size bcc particles occurs by grain boundary sliding accommodated by flow controlled by grain boundary diffusion at room temperature. The hierarchical multiphase microstructure design allows for the operation and interaction of different shear deformation bands to provide large plastic strain at high strength.

Original language	English
Pages (from-to)	5576-5584
Journal	Materials Science and Engineering: A
Volume	528
Issue number	16-17
DOIs	https://doi.org/10.1016/j.msea.2011.03.093
Publication status	Published - 25 Jun 2011

Keywords

Magnesium alloys
Mechanical characterization
Plasticity

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10.1016/j.msea.2011.03.093

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title = "Large plasticity of a Mg42Li23Cu25Y10 multiphase composite",

abstract = "A novel Mg42Li23Cu25Y10 nanostructure-bcc ductile phase composite containing a Mg2Cu phase and amorphous zones has been obtained by injection casting. This alloy exhibits a large plastic engineering strain of 83% and plastic true strain of 177% with a flow stress at 4.3% deformation of 425 MPa. During compression, the deformation of the nanometer size bcc particles occurs by grain boundary sliding accommodated by flow controlled by grain boundary diffusion at room temperature. The hierarchical multiphase microstructure design allows for the operation and interaction of different shear deformation bands to provide large plastic strain at high strength.",

keywords = "Magnesium alloys, Mechanical characterization, Plasticity",

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T1 - Large plasticity of a Mg42Li23Cu25Y10 multiphase composite

AU - Gonzalez Sanchez, Sergio

AU - Louzguine-Luzgin, Dimitri

AU - Perepezko, John

AU - Inoue, Akihisa

PY - 2011/6/25

Y1 - 2011/6/25

N2 - A novel Mg42Li23Cu25Y10 nanostructure-bcc ductile phase composite containing a Mg2Cu phase and amorphous zones has been obtained by injection casting. This alloy exhibits a large plastic engineering strain of 83% and plastic true strain of 177% with a flow stress at 4.3% deformation of 425 MPa. During compression, the deformation of the nanometer size bcc particles occurs by grain boundary sliding accommodated by flow controlled by grain boundary diffusion at room temperature. The hierarchical multiphase microstructure design allows for the operation and interaction of different shear deformation bands to provide large plastic strain at high strength.

AB - A novel Mg42Li23Cu25Y10 nanostructure-bcc ductile phase composite containing a Mg2Cu phase and amorphous zones has been obtained by injection casting. This alloy exhibits a large plastic engineering strain of 83% and plastic true strain of 177% with a flow stress at 4.3% deformation of 425 MPa. During compression, the deformation of the nanometer size bcc particles occurs by grain boundary sliding accommodated by flow controlled by grain boundary diffusion at room temperature. The hierarchical multiphase microstructure design allows for the operation and interaction of different shear deformation bands to provide large plastic strain at high strength.

KW - Magnesium alloys

KW - Mechanical characterization

KW - Plasticity

U2 - 10.1016/j.msea.2011.03.093

DO - 10.1016/j.msea.2011.03.093

M3 - Article

SN - 0921-5093

VL - 528

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EP - 5584

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 16-17

ER -

Large plasticity of a Mg42Li23Cu25Y10 multiphase composite

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Keywords

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