Microstructure and Mechanical Properties of Friction Stir Welded AA6061/AA6061 + 40 vol% SiC Plates

Sara Señorís-Puentes; Ricardo Fernández Serrano; Gaspar González-Doncel; Jesper Henri Hattel; Oleg V. Mishin

doi:10.3390/met11020206

Microstructure and Mechanical Properties of Friction Stir Welded AA6061/AA6061 + 40 vol% SiC Plates

Sara Señorís-Puentes^*, Ricardo Fernández Serrano, Gaspar González-Doncel, Jesper Henri Hattel, Oleg V. Mishin^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

6 Downloads (Pure)

Abstract

The feasibility of butt friction stir welding (FSW) of a metal matrix composite (MMC) with a very high SiC particle content to a monolithic aluminum alloy is tested in this work. It is demonstrated for the first time that sound FSW joints can be obtained between an AA6061 aluminum plate and a thick MMC plate consisting of AA6061 reinforced with 40 vol% SiC particles. The joints withstand tensile testing, with ductile failure taking place in a soft region of the heat-affected zone on the alloy side. Metallographic examination of the MMC side after FSW reveals curved bands, where both the frequency of SiC particles and hardness are significantly lower than those in any other region on the MMC side. It is suggested that these bands are produced by transporting the alloy material to the MMC side, where the alloy is mechanically mixed with the MMC.

Original language	English
Article number	206
Journal	Metals
Volume	11
Issue number	2
Number of pages	11
ISSN	2075-4701
DOIs	https://doi.org/10.3390/met11020206
Publication status	Published - 2021

Keywords

Dissimilar friction stir welding (FSW)
Metal matrix composites (MMCs)
Aluminum AA6061
Microstructure
Hardness
Mechanical strength

Access to Document

10.3390/met11020206Licence: CC BY

FulltextFinal published version, 3.64 MBLicence: CC BY

Fingerprint Dive into the research topics of 'Microstructure and Mechanical Properties of Friction Stir Welded AA6061/AA6061 + 40 vol% SiC Plates'. Together they form a unique fingerprint.

Cite this

@article{f4fa7a6967114fab838e387886816c5e,

title = "Microstructure and Mechanical Properties of Friction Stir Welded AA6061/AA6061 + 40 vol% SiC Plates",

abstract = "The feasibility of butt friction stir welding (FSW) of a metal matrix composite (MMC) with a very high SiC particle content to a monolithic aluminum alloy is tested in this work. It is demonstrated for the first time that sound FSW joints can be obtained between an AA6061 aluminum plate and a thick MMC plate consisting of AA6061 reinforced with 40 vol% SiC particles. The joints withstand tensile testing, with ductile failure taking place in a soft region of the heat-affected zone on the alloy side. Metallographic examination of the MMC side after FSW reveals curved bands, where both the frequency of SiC particles and hardness are significantly lower than those in any other region on the MMC side. It is suggested that these bands are produced by transporting the alloy material to the MMC side, where the alloy is mechanically mixed with the MMC.",

keywords = "Dissimilar friction stir welding (FSW), Metal matrix composites (MMCs), Aluminum AA6061, Microstructure, Hardness, Mechanical strength",

author = "Sara Se{\~n}or{\'i}s-Puentes and {Fern{\'a}ndez Serrano}, Ricardo and Gaspar Gonz{\'a}lez-Doncel and Hattel, {Jesper Henri} and {V. Mishin}, Oleg",

year = "2021",

doi = "10.3390/met11020206",

language = "English",

volume = "11",

journal = "Metals",

issn = "2075-4701",

publisher = "M D P I AG",

number = "2",

}

TY - JOUR

T1 - Microstructure and Mechanical Properties of Friction Stir Welded AA6061/AA6061 + 40 vol% SiC Plates

AU - Señorís-Puentes, Sara

AU - Fernández Serrano, Ricardo

AU - González-Doncel, Gaspar

AU - Hattel, Jesper Henri

AU - V. Mishin, Oleg

PY - 2021

Y1 - 2021

N2 - The feasibility of butt friction stir welding (FSW) of a metal matrix composite (MMC) with a very high SiC particle content to a monolithic aluminum alloy is tested in this work. It is demonstrated for the first time that sound FSW joints can be obtained between an AA6061 aluminum plate and a thick MMC plate consisting of AA6061 reinforced with 40 vol% SiC particles. The joints withstand tensile testing, with ductile failure taking place in a soft region of the heat-affected zone on the alloy side. Metallographic examination of the MMC side after FSW reveals curved bands, where both the frequency of SiC particles and hardness are significantly lower than those in any other region on the MMC side. It is suggested that these bands are produced by transporting the alloy material to the MMC side, where the alloy is mechanically mixed with the MMC.

AB - The feasibility of butt friction stir welding (FSW) of a metal matrix composite (MMC) with a very high SiC particle content to a monolithic aluminum alloy is tested in this work. It is demonstrated for the first time that sound FSW joints can be obtained between an AA6061 aluminum plate and a thick MMC plate consisting of AA6061 reinforced with 40 vol% SiC particles. The joints withstand tensile testing, with ductile failure taking place in a soft region of the heat-affected zone on the alloy side. Metallographic examination of the MMC side after FSW reveals curved bands, where both the frequency of SiC particles and hardness are significantly lower than those in any other region on the MMC side. It is suggested that these bands are produced by transporting the alloy material to the MMC side, where the alloy is mechanically mixed with the MMC.

KW - Dissimilar friction stir welding (FSW)

KW - Metal matrix composites (MMCs)

KW - Aluminum AA6061

KW - Microstructure

KW - Hardness

KW - Mechanical strength

U2 - 10.3390/met11020206

DO - 10.3390/met11020206

M3 - Journal article

VL - 11

JO - Metals

JF - Metals

SN - 2075-4701

IS - 2

M1 - 206

ER -