Material flow and mechanical behaviour of dissimilar AA2024-T3 and AA7075-T6 aluminium alloys friction stir welds

Silva, A.A.M. da; Arruti, Ekaitz; Janeiro, G.; Aldanondo, Egoitz; Álvarez, Pedro; Echeverría, Alberto

doi:10.1016/j.matdes.2010.11.059

Cited by 187 publications

(78 citation statements)

References 25 publications

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“…Da Silva has investigated the effect of joining parameters on the mechanical properties, microstructural features and material flow of dissimilar aluminum alloy joints produced by friction stir welding [1]. Scialpi studied the friction stir welding of thin aluminum alloy of 0.8 mm thick.…”

Section: Introductionmentioning

confidence: 99%

Optimization of process parameters of friction stir welded AA 5083-O aluminum alloy using Response Surface Methodology

Jannet¹,

Mathews²,

Raja³

2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract.A methodology was exhibited to create the experimental model for assessing the Ultimate Tensile Strength of AA 5083-O aluminum compound which is broadly utilized as a part of boat building industry by Friction Stir Welding (FSW). FSW process parameters, such as: tool rotational speed, welding speed, and axial force were optimized for better results. FSW was completed considering three-component 3-level Box Behnekn Design. Response surface Methodology (RSM) was implemented to obtain the relationship between the FSW process parameters and ultimate Tensile Strength. Analysis of Variance (ANOVA) procedure was utilized to check the aptness of the created model. The FSW process parameters were additionally streamlined utilizing Response Surface Methodology (RSM) to augment tensile strength. The joint welded at a rotational speed of 1100 rpm, a welding speed of 75 mm/min and a pivotal energy of 2.5 t displays higher tensile strength compared with different joints in comparison with other joints.

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Section: Introductionmentioning

confidence: 99%

Optimization of process parameters of friction stir welded AA 5083-O aluminum alloy using Response Surface Methodology

Jannet¹,

Mathews²,

Raja³

2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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“…Steuwer et al [8] have investigated the role of rotational and transverse speeds on dissimilar FSW of AA5083 and AA6082, where they found that rotational speed has a significant impact on residual stresses as well as the final mechanical properties of the weld. da Silva et al [9] have studied mechanical properties and material flow during dissimilar FSW of 3 mm thick plates of AA2024-T3 and AA7075-T6. They have reported that different degrees of material mixing can be obtained in the SZ depending on rotation speed while limited material mixing is observed at low tool rotation speeds.…”

Section: Introductionmentioning

confidence: 99%

A study on microstructures and residual stress distributions in dissimilar friction-stir welding of AA5086–AA6061

et al. 2012

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Dissimilar friction stir welds of aluminum alloys AA5086 in annealed and AA6061 in T6 temper conditions were investigated in terms of residual stress, grain structure and precipitation distribution in different zones of the welded joints. Optical metallography and transmission electron microscopy were used to characterize microstructures of different zones of the welds. In addition, residual stress profile and local mechanical properties of different zones were evaluated employing X-ray diffraction method and digital image correlation technique. It was found that softening in the AA6061-T6 side occurs in regions with weld peak temperature higher than 300°C. The micro-hardness profile results and TEM investigations also showed that thermo-mechanical affected zone of AA6061 side with large plate-shaped b precipitates is the softest region of the joints in AA6061 side. Furthermore, residual stress distribution within the samples is not directly dependent on the local mechanical properties of different zones of the joints.

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“…These onion ring structures show us that adequate flow of materials and intermixing of the parent metals has taken place in a preferred manner in the fabricated joints [13]. But at the same time, in this arrangement, we can observe tunnel defects when the feed rate is further reduced to 0.5 mm/min resulting due to excess amount of heat input.…”

Section: Microstructural Characteristicsmentioning

confidence: 78%

Influence of The Arrangement of Materials and Microstructural Analysis During FSW of AZ80A & AZ91C Mg Alloys

Sevvel

Jaiganesh

2017

Archives of Metallurgy and Materials

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The main objective of this paper is to produce defect free weldments with improved properties during friction stir welding of dissimilar Mg alloys. The influence of the anisotropic arrangement of materials when AZ80A Mg alloy is taken as advancing side and AZ91C Mg alloy as retreating side and vice versa with respect to their mechanical properties and microstructural characteristics were investigated. The effects of various FSW parameters on the quality of these joints were also analyzed and best optimized FSW parameters were suggested. Defect free sound joints with excellent mechanical properties were produced when AZ80A Mg alloy was positioned at retreating side. At the same time, it seems a little bit difficult to obtain good quality joints with the contrary arrangement of materials. These investigations revealed that materials having inferior plastic deformability must be kept at the advancing side to obtain sound joints during FSW of dissimilar alloys of Magnesium.

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Material flow and mechanical behaviour of dissimilar AA2024-T3 and AA7075-T6 aluminium alloys friction stir welds

Cited by 187 publications

References 25 publications

Optimization of process parameters of friction stir welded AA 5083-O aluminum alloy using Response Surface Methodology

Optimization of process parameters of friction stir welded AA 5083-O aluminum alloy using Response Surface Methodology

A study on microstructures and residual stress distributions in dissimilar friction-stir welding of AA5086–AA6061

Influence of The Arrangement of Materials and Microstructural Analysis During FSW of AZ80A & AZ91C Mg Alloys

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