Comparison of Constituent Intermetallic Particles in Different Aluminium Alloys

Joao Victor De Sousa Araujo; Isolda Costa; Xiaorong Zhou

doi:10.1007/s13632-025-01170-w

Comparison of Constituent Intermetallic Particles in Different Aluminium Alloys

Joao Victor De Sousa Araujo, Isolda Costa, Xiaorong Zhou

Materials Engineering

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Abstract

This study quantitatively evaluates the variation in the distribution, density, size, and chemical composition of constituent intermetallic particles (IMPs) in different commercial high strength aluminium alloys, including Al-Cu-Mg (AA2024-T3), Al-Cu-Li (AA2198-T8/T851), and Al-Mg-Zn (AA7475-T761) alloys. It is observed that the AA2024-T3 alloy is characterized by three primary types of IMPs (Al-Cu-Mg, Al-Cu-Fe-Mn, and Al-Cu-Fe-Mn-Si) and the highest particle population density. In contrast, the Al-Cu-Li alloys contain a single type of IMP (Al-Cu-Fe), while the AA7475-T761 alloy exhibits the lowest population density of IMPs that are distinguished by varying copper contents.

Original language	English
Pages (from-to)	106–119
Journal	Metallography, Microstructure, and Analysis
Volume	14
Early online date	24 Jan 2025
DOIs	https://doi.org/10.1007/s13632-025-01170-w
Publication status	Published - 1 Feb 2025

Keywords

Aluminium alloys
Microstructure characterization
Electron microscopy
Constituent Intermetallic Particles

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10.1007/s13632-025-01170-w

AAMAccepted author manuscript, 1.67 MBLicence: CC BY

SusCoRD: Sustainable Coatings by Rational Design
Lyon, S. (PI), Burnett, T. (CoI), Curioni, M. (CoI), Pereira Da Fonte, C. (CoI), Siperstein, F. (CoI), Stevens, N. (CoI) & Zhou, X. (CoI)
1/11/18 → 31/10/24
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title = "Comparison of Constituent Intermetallic Particles in Different Aluminium Alloys",

abstract = "This study quantitatively evaluates the variation in the distribution, density, size, and chemical composition of constituent intermetallic particles (IMPs) in different commercial high strength aluminium alloys, including Al-Cu-Mg (AA2024-T3), Al-Cu-Li (AA2198-T8/T851), and Al-Mg-Zn (AA7475-T761) alloys. It is observed that the AA2024-T3 alloy is characterized by three primary types of IMPs (Al-Cu-Mg, Al-Cu-Fe-Mn, and Al-Cu-Fe-Mn-Si) and the highest particle population density. In contrast, the Al-Cu-Li alloys contain a single type of IMP (Al-Cu-Fe), while the AA7475-T761 alloy exhibits the lowest population density of IMPs that are distinguished by varying copper contents. ",

keywords = "Aluminium alloys, Microstructure characterization, Electron microscopy, Constituent Intermetallic Particles",

author = "{De Sousa Araujo}, {Joao Victor} and Isolda Costa and Xiaorong Zhou",

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doi = "10.1007/s13632-025-01170-w",

language = "English",

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T1 - Comparison of Constituent Intermetallic Particles in Different Aluminium Alloys

AU - De Sousa Araujo, Joao Victor

AU - Costa, Isolda

AU - Zhou, Xiaorong

PY - 2025/2/1

Y1 - 2025/2/1

N2 - This study quantitatively evaluates the variation in the distribution, density, size, and chemical composition of constituent intermetallic particles (IMPs) in different commercial high strength aluminium alloys, including Al-Cu-Mg (AA2024-T3), Al-Cu-Li (AA2198-T8/T851), and Al-Mg-Zn (AA7475-T761) alloys. It is observed that the AA2024-T3 alloy is characterized by three primary types of IMPs (Al-Cu-Mg, Al-Cu-Fe-Mn, and Al-Cu-Fe-Mn-Si) and the highest particle population density. In contrast, the Al-Cu-Li alloys contain a single type of IMP (Al-Cu-Fe), while the AA7475-T761 alloy exhibits the lowest population density of IMPs that are distinguished by varying copper contents.

AB - This study quantitatively evaluates the variation in the distribution, density, size, and chemical composition of constituent intermetallic particles (IMPs) in different commercial high strength aluminium alloys, including Al-Cu-Mg (AA2024-T3), Al-Cu-Li (AA2198-T8/T851), and Al-Mg-Zn (AA7475-T761) alloys. It is observed that the AA2024-T3 alloy is characterized by three primary types of IMPs (Al-Cu-Mg, Al-Cu-Fe-Mn, and Al-Cu-Fe-Mn-Si) and the highest particle population density. In contrast, the Al-Cu-Li alloys contain a single type of IMP (Al-Cu-Fe), while the AA7475-T761 alloy exhibits the lowest population density of IMPs that are distinguished by varying copper contents.

KW - Aluminium alloys

KW - Microstructure characterization

KW - Electron microscopy

KW - Constituent Intermetallic Particles

U2 - 10.1007/s13632-025-01170-w

DO - 10.1007/s13632-025-01170-w

M3 - Article

SN - 2192-9262

VL - 14

SP - 106

EP - 119

JO - Metallography, Microstructure, and Analysis

JF - Metallography, Microstructure, and Analysis

ER -

Comparison of Constituent Intermetallic Particles in Different Aluminium Alloys

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Keywords

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