Simulation of the mechanical properties of an aluminum matrix composite using X-ray microtomography

I.G. Watson, P.D. Lee, R.J. Dashwood, P. Young

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25 Citations (Scopus)

Abstract

Aluminum-based particulate-reinforced metal matrix composites (PMMCs) frequently have a heterogeneous distribution of reinforcement particles whether produced by a powder or liquid processing route. The applicability of X-ray microtomography (XMT) for the characterization of this heterogeneity, and its influence on final properties, was investigated for the case of a powder blended and extruded AA2124 matrix with Ni particulate. Three-dimensional image analysis techniques were used to quantify the embedded Ni particle size distribution and the extent and texture of clusters formed. The XMT data were exploited as a rapid method to generate a microstructurally accurate and robust three-dimensional mesh for input for finite-element modeling. Simulation of the elastoplastic response of the material showed excellent correlation with experimental results.
Original languageEnglish
Pages (from-to)551-558
Number of pages8
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume37
Issue number3
DOIs
Publication statusPublished - 2006

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Aluminum
Powders
particulate reinforced composites
mechanical properties
aluminum
X rays
Mechanical properties
metal matrix composites
composite materials
Composite materials
matrices
reinforcement
particle size distribution
image analysis
Particle size analysis
Image analysis
particulates
mesh
Reinforcement
x rays

Cite this

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T1 - Simulation of the mechanical properties of an aluminum matrix composite using X-ray microtomography

AU - Watson, I.G.

AU - Lee, P.D.

AU - Dashwood, R.J.

AU - Young, P.

PY - 2006

Y1 - 2006

N2 - Aluminum-based particulate-reinforced metal matrix composites (PMMCs) frequently have a heterogeneous distribution of reinforcement particles whether produced by a powder or liquid processing route. The applicability of X-ray microtomography (XMT) for the characterization of this heterogeneity, and its influence on final properties, was investigated for the case of a powder blended and extruded AA2124 matrix with Ni particulate. Three-dimensional image analysis techniques were used to quantify the embedded Ni particle size distribution and the extent and texture of clusters formed. The XMT data were exploited as a rapid method to generate a microstructurally accurate and robust three-dimensional mesh for input for finite-element modeling. Simulation of the elastoplastic response of the material showed excellent correlation with experimental results.

AB - Aluminum-based particulate-reinforced metal matrix composites (PMMCs) frequently have a heterogeneous distribution of reinforcement particles whether produced by a powder or liquid processing route. The applicability of X-ray microtomography (XMT) for the characterization of this heterogeneity, and its influence on final properties, was investigated for the case of a powder blended and extruded AA2124 matrix with Ni particulate. Three-dimensional image analysis techniques were used to quantify the embedded Ni particle size distribution and the extent and texture of clusters formed. The XMT data were exploited as a rapid method to generate a microstructurally accurate and robust three-dimensional mesh for input for finite-element modeling. Simulation of the elastoplastic response of the material showed excellent correlation with experimental results.

U2 - 10.1007/s11661-006-0027-9

DO - 10.1007/s11661-006-0027-9

M3 - Article

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SP - 551

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JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

SN - 1073-5623

IS - 3

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