Microstructural and mechanical analysis of 6063-T6 aluminum alloy joints bonded by friction stir welding

Su, Molin; Qi, XueYan; Xu, Longhua; Qi, Feng; Han, Yongdian; Zhao, Lei

doi:10.1007/s10853-022-07541-w

Cited by 13 publications

(2 citation statements)

References 45 publications

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“…The SEM of AA5083-H111 BM displayed different sizes of dimples with some areas of cleavage and serrations, indicating mixed fracture modes (ductile and brittle). An observable difference exists in the shape and size of the dimples and other fracture features concerning welding techniques [ 67 , 68 ]. For the dimples feature, coarse dimples were detected at the fractured surfaces of the T1 (TIG) and M1 (MIG) welded samples, and fine dimples were at the fractured surfaces of the F2 (FSW) joint.…”

Section: Resultsmentioning

confidence: 99%

Comparative Study of FSW, MIG, and TIG Welding of AA5083-H111 Based on the Evaluation of Welded Joints and Economic Aspect

Habba,

Alsaleh,

Badran

et al. 2023

Materials

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Selecting an economically suitable welding technique and optimizing welding parameters to obtain high joint quality is considered a challenge for expanding the 5xxx aluminum alloy series in various industrial applications. This work aims to investigate the effect of applying different welding techniques, tungsten inert gas (TIG) and metal inert gas (MIG), as fusion welding processes compared to friction stir welding (FSW), a solid-state joining process, on the joint performance of the produced 5 mm thick similar AA5083-H111 butt weldments at different welding conditions. Different methods were used to evaluate the quality of the produced joints, including visual inspection, radiographic testing (RT), and macrostructure evaluation, in addition to hardness and tensile tests. The fracture surface of the tensile-failed specimens was also investigated using a scanning electron microscope (SEM). Furthermore, the current study ended with an economic analysis of the welding techniques used. The results showed that, for the friction stir-welded joints, the radiographic films revealed defect-free joints at the two applied travel speeds of 100 mm/min and 400 mm/min and a constant tool rotating speed of 400 rpm. In addition, only one joint was welded by MIG at a welding current of 130 Amp, with a 19 L/min flow rate of pure argon. In contrast, the radiographic films showed internal defects such as lack of fusion (LOF), lack of penetration (LOP), and porosity (P) for the two joints welded by TIG and one joint welded by MIG. The hardness of the welded joints was enhanced over the AA5083-H111 base material (BM) by 24–29, 31–35, and 46–50% for the MIG, TIG, and FSW joints, respectively. The maximum ultimate tensile strength was obtained for the FSW joint welded at a 400 mm/min travel speed. Adopting FSW in shipbuilding applications can further produce the AA5083-H11 joints with higher quality and efficiency than fusion welding techniques such as MIG and TIG processes. In addition, time and cost comparisons between TIG, MIG, and FSW were performed for five-millimeter-thick and one-meter-long AA5083-H111.

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Section: Resultsmentioning

confidence: 99%

Comparative Study of FSW, MIG, and TIG Welding of AA5083-H111 Based on the Evaluation of Welded Joints and Economic Aspect

Habba,

Alsaleh,

Badran

et al. 2023

Materials

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“…al. [15] applied double sided(DS) FSW (compared with single sided (SD)) to 6063-T6 aluminum alloy with thickness of 10mm . 92 MPa fatigue strength obtained at DS FSW, and 76 MPa fatigue strength obtained at SS FSW [15].…”

Section: Introductionmentioning

confidence: 99%

A review of friction stir welding parameters, process and application fields

Kaygusuz

2023

Turkish Journal of Engineering

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Lightweight and durable materials such as aluminum alloys are widely used in sectors such as defense industry, aerospace industry, automotive industry, and high-speed train manufacturing. Some of these materials cannot be welded by conventional methods due to their high thermal conductivity and low melting point. In welding processes, the material properties are expected to be as close as possible to base material. Friction stir welding (FSW) is a joining method that provides welding below the melting point of materials that cannot be welded by conventional methods or where the welding process causes the mechanical structure of the material to deteriorate. In this study, FSW application, advantages and disadvantages and usage areas of friction stir welding were examined.

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Effect of Corrosion Environment on Fatigue Crack Growth Behavior of Marine Steels

Tian,

Su,

Feng

et al. 2024

J. of Materi Eng and Perform

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Microstructural and mechanical analysis of 6063-T6 aluminum alloy joints bonded by friction stir welding

Cited by 13 publications

References 45 publications

Comparative Study of FSW, MIG, and TIG Welding of AA5083-H111 Based on the Evaluation of Welded Joints and Economic Aspect

Comparative Study of FSW, MIG, and TIG Welding of AA5083-H111 Based on the Evaluation of Welded Joints and Economic Aspect

A review of friction stir welding parameters, process and application fields

Effect of Corrosion Environment on Fatigue Crack Growth Behavior of Marine Steels

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