Recent development in aluminium alloys for aerospace applications

Heinz, A.; Haszler, A.; Keidel, C.; Moldenhauer, S.; Benedictus, Rinze; Miller, W. S.

doi:10.1016/s0921-5093(99)00674-7

Cited by 1,126 publications

(368 citation statements)

References 2 publications

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“…AA6xxx is regularly faced in the manufacture of aircraft structures and other auxiliary applications [1]. Various welding defects happen in conventional fusion welding of aluminum alloys such as hot cracking, voids, distortion, loss of work hardening, lack of penetration, precipitate dissolution and hot cracking in the joints [2].…”

Section: Introduction Dissimilar Welding Of Aluminum Alloys Aa5xxxmentioning

confidence: 99%

Effect of Welding Speed on Mechanical Properties of Dissimilar Friction Stir Welded AA5083-H321 and AA6061-T6 Aluminum Alloys

Devaiah¹,

Kishore²,

Laxminarayana³

2017

IJAERS

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Section: Introduction Dissimilar Welding Of Aluminum Alloys Aa5xxxmentioning

confidence: 99%

Effect of Welding Speed on Mechanical Properties of Dissimilar Friction Stir Welded AA5083-H321 and AA6061-T6 Aluminum Alloys

Devaiah¹,

Kishore²,

Laxminarayana³

2017

IJAERS

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“…The high strength Al-Zn-Mg-Cu (7xxx series) aluminum alloys are extensively used in the commercial aircraft structures as well as various critical military bridges and vehicles due to their excellent mechanical properties developed during the agehardening process, high strength to weight ratio, fracture toughness and SCC resistance [1][2][3]. In the past decades, 7xxx series aluminum alloys and their process innovation have led to higher strength-level than before, with more reasonable designing of the major alloying elements and addition of trace elements such as Zr, Sc, etc [4,5].…”

Section: Introductionmentioning

confidence: 99%

Investigation on As-Cast Microstructure in a high Zn-containing Al-Zn-Mg-Cu-Zr alloy and Its Evolution during Two-stage Homogenization

Fan¹,

Li²,

Li³

et al. 2017

dtetr

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In this study, the as-cast microstructure of a high Zn-containing Al-Zn-Mg-CuZr alloy and its evolution during two-stage homogenization were investigated by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC) analysis. The analysis shows the eutectic structures in as-cast the alloy were identified as α(Al) / Mg(Zn,Cu,Al) 2 , and also some Al 2 CuMg, Al 2 Cu and Fe-rich phases formed in the eutectic structures during solidification. With the prolonging of the second stage homogenization time, S(Al 2 CuMg), θ(Al 2 Cu) and Mg(Zn,Cu,Al) 2 phases orderly dissolved into the matrix, and the insoluble Fe-rich phases exist in all five as-homogenized schemes in this study, but Zn and Mg elements changes detected in the these particles during the two stage homogenization.

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“…Al alloys are widely used in aircraft, automobiles, and electronic parts due to their excellent formability, corrosion resistance, and welding properties [1][2][3] . In addition, their density is approximately one-third of that of steel, which results in a higher speci c strength 4,5) .…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Friction-Welded A6063 and A2017 Alloys

2017

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The microstructures and mechanical properties of lightweight friction-welded dissimilar materials such as A6063 and A2017 alloy rods were investigated in this study. Friction welding was performed at a rotation speed of 2,000 RPM, friction load of 12 kgf/cm 2 , and upset force of 25 kgf/cm 2 . After welding, grain boundary characteristic distributions and the formation of intermetallic compounds were analyzed by electron backscattering diffraction and transmission electron microscopy, respectively, while the mechanical properties of the welded materials were studied by Vickers microhardness and tensile testing. The obtained results revealed that the friction welding of the two alloys led to signi cant grain re nement from around 50 μm for the base materials to 2 μm for the welded zone, while the Vickers microhardness and tensile strength of the welded area were equal to 81% and 96% of the corresponding values for the base materials, respectively, owing to the formation and growth of intermetallic compounds. However, the fracture initiated in the A6063 base material during tensile testing indicated superior quality of the welded joint. Therefore, friction welding of dissimilar materials can be effectively used to produce joints with high durability.

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Recent development in aluminium alloys for aerospace applications

Cited by 1,126 publications

References 2 publications

Effect of Welding Speed on Mechanical Properties of Dissimilar Friction Stir Welded AA5083-H321 and AA6061-T6 Aluminum Alloys

Effect of Welding Speed on Mechanical Properties of Dissimilar Friction Stir Welded AA5083-H321 and AA6061-T6 Aluminum Alloys

Investigation on As-Cast Microstructure in a high Zn-containing Al-Zn-Mg-Cu-Zr alloy and Its Evolution during Two-stage Homogenization

Microstructure and Mechanical Properties of Friction-Welded A6063 and A2017 Alloys

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