Dependence of the microstructure and microhardness of the AA2024-O alloy on the thermal and mechanical action on the weld during friction stir welding

Karmanov, V. V.; Каменева, Анна

doi:10.1088/1757-899x/447/1/012058

Cited by 2 publications

(4 citation statements)

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“…Although the annealed version AA2024-O is not directly recommended for use, efforts have been made to explore the advantages of its aging behavior for joining and forming processes [36,37]. Some research has shown satisfactory mechanical and corrosion properties for welded joints in both AA6061-O [38,39] and AA2024-O [40,41] alloys. The dissimilar system of AA6061-O-AA2024-O is utilized in forming processes for aeronautic and automotive components [42].…”

Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters on the Mechanical Properties and Corrosion Resistance of Dissimilar Friction Stir Welded Joints of AA2024-O and AA6061-O Aluminum Alloys

Soto-Diaz,

Sandoval-Amador,

Escorcia-Gutierrez

et al. 2024

Metals

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The influence of the process parameters, traverse, and rotational speeds of dissimilar friction stir welded joints of AA2024-O and AA6061-O aluminum alloys on the corrosion resistance was evaluated. Potentiodynamic tests using a 3.5% NaCl solution, open circuit potential, and polarization curves showed the corrosion behavior for the different welding parameters. These data were correlated with those obtained by mechanical tests (microhardness, tensile, and fracture analysis) and microstructure analysis by optical and scanning electron microscopy. It was observed that the combined effect of the parameters influenced the variation of corrosion resistance. This was evidenced mainly by the improvement of corrosion resistance at 1200 rpm–65 mm·min−1, which was related to the tendency of grain size and heat input presented. The corrosive attacks on the welded joints presented greater affectations in the presence of base material 1 (AA6061-O) with higher metallic dissolution. Corrosion attacks abovementioned were presented in different forms, such as pitting, localized, and selective, and they were observed by scanning electron microscopy. Finally, in corrosive and mechanical terms, the best performing condition was 1200 rpm and 65 mm·min−1 compared to the low parameter of 840 rpm and 45 mm·min−1.

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Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters on the Mechanical Properties and Corrosion Resistance of Dissimilar Friction Stir Welded Joints of AA2024-O and AA6061-O Aluminum Alloys

Soto-Diaz,

Sandoval-Amador,

Escorcia-Gutierrez

et al. 2024

Metals

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“…He observed that the resulting microstructure was free of defects and tensile strength of the welded joints is up to 75% of the base metal strength. Karmanov et al [5] studied about the dependence of the microstructure and micro hardness of the AA2024-O alloy on the thermal and mechanical action on the weld during Friction Stir Welding process. Jacob et al [6] evaluated the strength and microstructural behaviour of friction stir welded 7475 aluminium alloy using in-process cooling.…”

Section: Introductionmentioning

confidence: 99%

“…He observed that the joints had lower strength and elongation than the base material, and all the joints were fractured in the stir zone. This paper will discuss these papers [2][3][4][5][6][7][8][9] in a brief manner. [2] conducted study on AA 2014 -T6 heat treated alloy of 5 mm thickness plate in butt joint configuration.…”

Section: Introductionmentioning

confidence: 99%

“…For obtaining sound mechanical properties, travel speed is increased which results in proper diffusion between the stir zone and TMAZ due to uniform flow of the material. Karmanov et al [5] studied the relationship between the dependence of the microstructure of the weld of AA 2024 Friction Stir Welded joints on the heat input of the weld. From the IPFX map which is shown in the Figure 10, it is revealed that fine dispersed and equiaxed grains of the diameter which ranges between 1 -3 μm characterizes the advancing side.…”

Section: Introductionmentioning

confidence: 99%

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Friction Stir Welding of Aerospace Alloys

Mishra¹

2019

IJRASET

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Friction Stir Welding (FSW) is a solid state joining process which possesses a great potential to revolutionise the aerospace industries. Distinctive materials are selected as aerospace alloys to withstand higher temperature and loads. Sometimes these alloys are difficult to join by a conventional welding process but they are easily welded by FSW process. The FSW process in aerospace applications can be used for: aviation for fuel tanks, repair of faulty welds, cryogenic fuel tanks for space vehicles. Eclipse Aviation, for example, has reported dramatic production cost reductions with FSW when compared to other joining technologies. This paper will discuss about the mechanical and microstructure properties of various aerospace alloys which are joined by FSW process.

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Dependence of the microstructure and microhardness of the AA2024-O alloy on the thermal and mechanical action on the weld during friction stir welding

Cited by 2 publications

References 3 publications

Influence of Process Parameters on the Mechanical Properties and Corrosion Resistance of Dissimilar Friction Stir Welded Joints of AA2024-O and AA6061-O Aluminum Alloys

Influence of Process Parameters on the Mechanical Properties and Corrosion Resistance of Dissimilar Friction Stir Welded Joints of AA2024-O and AA6061-O Aluminum Alloys

Friction Stir Welding of Aerospace Alloys

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