Microstructure, mechanical properties and residual stresses as a function of welding speed in aluminium AA5083 friction stir welds

Peel, Matthew; Steuwer, A.; Preuss, Michael; Withers, Philip J.

doi:10.1016/s1359-6454(03)00319-7

Cited by 650 publications

(417 citation statements)

References 16 publications

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“…[33] This residual stress in the SZ has to be supported by the material surrounding it. Because the testing specimens were machined from the SZ, the residual stress must be relaxed considerably.…”

Section: B Tensile-compressive Strength Differencementioning

confidence: 99%

Effect of Processing Parameters on Microstructure and Mechanical Properties of an Al-Al11Ce3-Al2O3 In-Situ Composite Produced by Friction Stir Processing

Chen

Kao

Chang

et al. 2009

Metall Mater Trans A

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Friction stir processing (FSP) was applied to produce aluminum-based in-situ composites from powder mixtures of Al-5 mol pct CeO 2 . A billet of powder mixtures was prepared using the conventional pressing and sintering route. The sintered billet was then subjected to multiple passages of FSP. This technique has combined the hot-working nature of FSP and the exothermic reaction between Al and CeO 2 . The reinforcing phases were identified as Al 11 Ce 3 and d * -Al 2 O 3 . The Al 2 O 3 particles with an average size of~10 nm are uniformly distributed in the aluminum matrix, which has an average grain size of approximately 390 to 500 nm. Both the sintering temperature and the tool traversing speed used in FSP have significant influence on the microstructure and mechanical properties of the composite. The composite produced by sintering at 833 K followed by FSP with a tool traversing speed of 30 mm/min possesses an enhanced modulus (E = 109 GPa) and strength (ultimate tensile strength (UTS) = 488 MPa) as well as a tensile ductility of~3 pct.

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Section: B Tensile-compressive Strength Differencementioning

confidence: 99%

Effect of Processing Parameters on Microstructure and Mechanical Properties of an Al-Al11Ce3-Al2O3 In-Situ Composite Produced by Friction Stir Processing

Chen

Kao

Chang

et al. 2009

Metall Mater Trans A

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“…FSW is a "solid-state" technique that prevents solidification problems, producing sound joints even in materials that are traditionally considered to be unweldable. In Al-Mg alloys, however, full-strength joints can only be obtained in the annealed state [3][4][5][6][7][8]. In the hardened state, the weld strength is also relatively low [9,10].…”

Section: Introductionmentioning

confidence: 99%

Friction-stir welding of an Al–Mg–Sc–Zr alloy in as-fabricated and work-hardened conditions

Malopheyev

Kulitskiy

Mironov

et al. 2014

Materials Science and Engineering: A

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. b s t r a c tThe effect of prior work hardening on the microstructure and mechanical properties of a friction-stir welded (FSWed) Al-5.4Mg-0.2Sc-0.1Zr alloy was investigated. The microstructure of the final stir zone was shown to be weakly dependent on the initial condition of the base material; FSW led to the formation of fully recrystallized microstructures with average grain sizes ranging from 1.2 to 1.5 μm and a moderate dislocation density of $ 3.57 1.5 Â 10 13 m À 2 in the stir zone. The nano-scale Al 3 (Sc,Zr) dispersoids coarsened from 9 to $ 15 nm but retained a coherent relationship with the matrix. In contrast, the joint efficiency of the obtained welds was very sensitive to the initial material condition. Nearly full strength joints were obtained in both annealed (O) and partially hardened and stabilized (H323) conditions. However, the joint efficiency was only 65% in the fully hardened condition (H18). The relatively low weld strength for the alloy in the H18 condition was attributed to the elimination of dislocation and substructure strengthening during FSW.

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“…Onde pode-se observar que a maior média das tensões residuais foram para a maior velocidade de soldagem (aporte tér-mico menor) concordando com o trabalho de Peel et al [12], onde foi observado que o aumento do aporte térmi-co através da redução da velocidade de soldagem resulta na redução da tensão residual. A Tabela 4 mostra os valores de P-valor para os efeitos dos fatores individualmente e do efeito de interação tanto para tensões residuais em X quanto para Y.…”

Section: Ensaio Pelo Método De Deslocamento De Pontos Coordenadosunclassified

Efeito da Velocidade de Soldagem e Anisotropia no Cálculo de Tensões Residuais em Chapas Soldadas pelo Processo GMAW

Mendes

Cardoso

Ferreira

2016

REPA

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Microstructure, mechanical properties and residual stresses as a function of welding speed in aluminium AA5083 friction stir welds

Cited by 650 publications

References 16 publications

Effect of Processing Parameters on Microstructure and Mechanical Properties of an Al-Al11Ce3-Al2O3 In-Situ Composite Produced by Friction Stir Processing

Effect of Processing Parameters on Microstructure and Mechanical Properties of an Al-Al11Ce3-Al2O3 In-Situ Composite Produced by Friction Stir Processing

Friction-stir welding of an Al–Mg–Sc–Zr alloy in as-fabricated and work-hardened conditions

Efeito da Velocidade de Soldagem e Anisotropia no Cálculo de Tensões Residuais em Chapas Soldadas pelo Processo GMAW

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