Effect of FSW process parameters on mechanical properties and microstructure of dissimilar welded joints of AA2024 and AA6082

Kumar, Ravindra; Salah, A. Nait; Kant, Neeraj; Singh, Pushpender; Hashmi, Abdul Wahab; Malla, Chandrabhanu

doi:10.1016/j.matpr.2021.09.007

Cited by 9 publications

(8 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These joints were carried out by varying the welding speed between 30 and 50 mm.min-1, the rotational speed between 1200 and 1400 rpm and the alloy AA2024 placed on the advancing side. They observed a correlation between the mixing pattern and mechanical properties with the process parameters [31,32].…”

Section: Introductionmentioning

confidence: 97%

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-Diaz¹,

Sandoval-Amador²,

Escorcia‐Gutierrez³

et al. 2023

Preprint

View full text Add to dashboard Cite

xIn this study, 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 obtained open circuit potential curves and polarization curves showing 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 microscopy and scanning electron microscopy. It was observed that the combined effect of the parameters influenced the variation of corrosion resistance. This was mainly evidenced by the improvement in corrosion resistance at 1200rpm − 65mm · min−1 which was related to the recrystallization of the grain size and the heat input presented. Corrosive attacks on the welded joints showed greater affectations in the presence of base material 1 (AA6061-O) with greater metallic dissolution. The attacks mentioned above were presented in different forms, such as pitting, localized, and selective, and were observed by scanning electron microscopy. Finally, in corrosive and mechanical terms, the best performing condition was 1200rpm − 65mm · min−1 compared to the low parameter 840rpm − 45mm · min−1 .

show abstract

Section: Introductionmentioning

confidence: 97%

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-Diaz¹,

Sandoval-Amador²,

Escorcia‐Gutierrez³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The best behavior was observed when AA2024 was on the advanced side [30]. Kumar et al [32] and Mohapatra et al [33] studied the effect of parameters on dissimilar welded joints of AA2024 and AA6082 aluminum alloys. They measured hardness and tensile tests, complemented with metallographic observations.…”

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

View full text Add to dashboard Cite

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.

show abstract

“…Cavaliere et al investigated the 6082/2024 FSW joints and found that 2024 should be placed on the AS to reduce the axial pressure of the stirring tool [11]. Kumar et al reported that the ultimate tensile strength and hardness increased with the increasing rotational speed (1200 to 1400 rpm) at the lower welding speed (30 to 50 mm min −1 ) in FSW 2024/6082 joints [12]. Zhang et al gave a quantitative analysis of grain structure and texture evolution of dissimilar friction stir welded 2024/7075 joints, in which it was found that the average grain size and recrystallization degree were reduced with the increase in welding speed [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of water cooling on microstructure and mechanical properties of friction stir welded dissimilar 2A12/6061 aluminum alloys

Shi

Sun

Liu

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

In-process cooling has been reported beneficial to some friction stir welded (FSW) aluminum alloys. But the effect of water cooling (WC) on the performance of dissimilar joints is still unclear. This work studies the effects of process parameters and water cooling on the microstructure and mechanical properties of the dissimilar 2A12-T6/AA6061-T6 FSW joints. Two rotational speeds (1200 and 1500 rpm) and one welding speed (80 mm/min) were adopted. The macro/micro structural characteristics, microhardness distribution, tensile properties and fracture morphology have been investigated. The results show 2A12 on advancing side shows the higher plasticizing degree than 6061 during FSW. Cracks and tunnels are found in nugget zone (NZ) of 1200-80WC joint due to the poor fluidity of metals. The average grain size of NZ increases with the rotational speed and can be decreased by water cooling. For all of the joints, the lowest hardness positions locate in the heat affected zone of 6061. The effect of water cooling on hardness is found related to the nature of material and the rotational speed. The 1200-80 joint shows the best mechanical properties. Water cooling damages the mechanical properties of the 1200-80 joint by inducing void and crack defects. However, it enhances the strength of 1500-80 joint. The 1200-80WC joint fractures in NZ while others fracture in the positions with the lowest hardness. The fracture locations and morphology accord well with the microstructure, microhardness and tensile properties.

show abstract

Effect of FSW process parameters on mechanical properties and microstructure of dissimilar welded joints of AA2024 and AA6082

Cited by 9 publications

References 38 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

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

Effect of water cooling on microstructure and mechanical properties of friction stir welded dissimilar 2A12/6061 aluminum alloys

Contact Info

Product

Resources

About