Determination of a Set of Constitutive Equations for an Al-Li Alloy at SPF Conditions

Haoxiang Gao; Nan Li; Hongliang Ho; Yanling Zhang; Ning Zhang; Liliang Wang; Jianguo Lin

doi:10.1016/j.matpr.2015.05.056

Determination of a Set of Constitutive Equations for an Al-Li Alloy at SPF Conditions

Haoxiang Gao, Nan Li, Hongliang Ho, Yanling Zhang, Ning Zhang, Liliang Wang (Corresponding Author), Jianguo Lin

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

Abstract

Uniaxial tensile tests of aluminium-lithium alloy AA1420wereconducted at superplastic forming conditions. The mechanical properties of this Al-Li alloy were then modelled by a set of physicallybased constitutive equations. The constitutive equations describe the isotropic work hardening,recovery and damage by dislocation density changes and grain size evolution. Based on a recent upgraded optimisation technique, the material constants for these constitutive equations were determined.

Original language	English
Pages (from-to)	S408-S413
Number of pages	6
Journal	Materials Today: Proceedings
Volume	2
DOIs	https://doi.org/10.1016/j.matpr.2015.05.056
Publication status	Published - 2015
Externally published	Yes

Keywords

Al-Li alloy,Superplastic forming
Constitutive equation
Damage evolution
Microstructure evolution

ASJC Scopus subject areas

General Materials Science

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10.1016/j.matpr.2015.05.056

Cite this

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title = "Determination of a Set of Constitutive Equations for an Al-Li Alloy at SPF Conditions",

abstract = "Uniaxial tensile tests of aluminium-lithium alloy AA1420wereconducted at superplastic forming conditions. The mechanical properties of this Al-Li alloy were then modelled by a set of physicallybased constitutive equations. The constitutive equations describe the isotropic work hardening,recovery and damage by dislocation density changes and grain size evolution. Based on a recent upgraded optimisation technique, the material constants for these constitutive equations were determined.",

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author = "Haoxiang Gao and Nan Li and Hongliang Ho and Yanling Zhang and Ning Zhang and Liliang Wang and Jianguo Lin",

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AU - Gao, Haoxiang

AU - Li, Nan

AU - Ho, Hongliang

AU - Zhang, Yanling

AU - Zhang, Ning

AU - Wang, Liliang

AU - Lin, Jianguo

PY - 2015

Y1 - 2015

N2 - Uniaxial tensile tests of aluminium-lithium alloy AA1420wereconducted at superplastic forming conditions. The mechanical properties of this Al-Li alloy were then modelled by a set of physicallybased constitutive equations. The constitutive equations describe the isotropic work hardening,recovery and damage by dislocation density changes and grain size evolution. Based on a recent upgraded optimisation technique, the material constants for these constitutive equations were determined.

AB - Uniaxial tensile tests of aluminium-lithium alloy AA1420wereconducted at superplastic forming conditions. The mechanical properties of this Al-Li alloy were then modelled by a set of physicallybased constitutive equations. The constitutive equations describe the isotropic work hardening,recovery and damage by dislocation density changes and grain size evolution. Based on a recent upgraded optimisation technique, the material constants for these constitutive equations were determined.

KW - Al-Li alloy,Superplastic forming

KW - Constitutive equation

KW - Damage evolution

KW - Microstructure evolution

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U2 - 10.1016/j.matpr.2015.05.056

DO - 10.1016/j.matpr.2015.05.056

M3 - Journal article

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VL - 2

SP - S408-S413

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

ER -

Determination of a Set of Constitutive Equations for an Al-Li Alloy at SPF Conditions

Abstract

Keywords

ASJC Scopus subject areas

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