Atomic Structure of Hardening Precipitates in Al–Mg–Si Alloys: Influence of Minor Additions of Cu and Zn

Bartawi, Emad H.; Marioara, Calin D.; Shaban, Ghada; Hatzoglou, Constantinos; Holmestad, Randi; Ambat, Rajan

doi:10.1021/acsnano.3c09129

ACS Nano

2023

DOI: 10.1021/acsnano.3c09129

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Atomic Structure of Hardening Precipitates in Al–Mg–Si Alloys: Influence of Minor Additions of Cu and Zn

Emad H. Bartawi,

Calin D. Marioara,

Ghada Shaban

et al.

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2024

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Cited by 11 publications

References 63 publications

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The Influence of Microstructure Evolution on the Mechanical and Electrochemical Properties of Dissimilar Welds from Aluminum Alloys Manufactured Via Friction Stir Welding

Lipińska,

Kooijman,

Śnieżek

et al. 2024

Metall Mater Trans A

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The present study investigated a new configuration of friction stir welded joints from two aluminum alloys. Dissimilar welds AA6082/AA1350 were examined, whereas, for AA1350, two states were investigated—coarse-grained (CG) and ultrafine-grained (UFG). Changes in the mechanical and electrochemical properties regarding the microstructure evolution across the welds were discussed. The average grain size in the stir zone (SZ) for all materials equaled 4 to 5 µm with a fraction of high-angle grain boundaries of about 77 pct, indicating the occurrence of continuous dynamic recrystallization. Changes in the microhardness across the welds were connected with differences in grain size (AA1350) and dissolution of β″ precipitates in the SZ of AA6082. As a result, the tensile strength of the welds decreased compared to base materials AA6082 and AA1350 UFG; however, there was an increase when compared to the base material AA1350 CG. Electrochemical experiments revealed that pitting corrosion occurred for AA1350, while for AA6082, it was a combination of pitting and intergranular corrosion. The depth of corrosion attack was higher for AA1350, with a maximum value of ~ 70 µm for base materials, while in the SZ, a depth decreased to 50 µm. For the AA6082, the maximum depth was measured in the SZ and did not exceed 30 µm.

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The Influence of Microstructure Evolution on the Mechanical and Electrochemical Properties of Dissimilar Welds from Aluminum Alloys Manufactured Via Friction Stir Welding

Lipińska,

Kooijman,

Śnieżek

et al. 2024

Metall Mater Trans A

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Effect of Heat Treatment and Zn Addition on Microstructure and Properties of Al–Si–Cu–Mg–Cr–B Alloy

Zheng,

2024

Inter Metalcast

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Morphology evolution of β-phase in Al-Mg-Si alloys during aging treatment

Ahmed,

Uttarasak,

Tsuchiya

et al. 2024

Journal of Alloys and Compounds

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Atomic Structure of Hardening Precipitates in Al–Mg–Si Alloys: Influence of Minor Additions of Cu and Zn

Cited by 11 publications

References 63 publications

The Influence of Microstructure Evolution on the Mechanical and Electrochemical Properties of Dissimilar Welds from Aluminum Alloys Manufactured Via Friction Stir Welding

The Influence of Microstructure Evolution on the Mechanical and Electrochemical Properties of Dissimilar Welds from Aluminum Alloys Manufactured Via Friction Stir Welding

Effect of Heat Treatment and Zn Addition on Microstructure and Properties of Al–Si–Cu–Mg–Cr–B Alloy

Morphology evolution of β-phase in Al-Mg-Si alloys during aging treatment

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