Influence of ultrasonic vibrations on the microstructure and mechanical properties of Al/Ti friction stir lap welds

Yu, Mingrun; Zhao, Hongyun; Fei, Xu; Chen, Tiejue; Zhou, Li; Song, Xiaoguo; Ma, Ninshu

doi:10.1016/j.jmatprotec.2020.116676

Cited by 37 publications

(20 citation statements)

References 23 publications

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“…The microhardness of the SZ was enhanced because of the refinement of grain, which is induced by ultrasonic. No IMCs layer, pore, or microcrack was observed at the weld interface which is well supported by Yu et al 38 and Zhou et al 43 Patel et al 60 joined AA6061-pure Ti using the cooling and heating conditions of FSW. The following cooling media such as CO 2 , compressed air, and water at a measured flow rate under cooling conditions was employed.…”

Section: Other Friction-based Hybrid Processessupporting

confidence: 76%

“…The process performs better in lap-shear condition than conventional FSLW. 38 It can be seen from Table 7 that the shear strength of AA2024-Ti6Al4V alloy joining using TLP bonding process with Sn-5.3Ag-4.2Bi as an interlayer is almost double than Cu À 22%Zn interlayer. Similar results are also seen for AA7075-Ti6Al4V alloy with Sn-4Ag-3.5Bi as an interlayer than the Cu interlayer.…”

Section: Minimum Imc Thickness Among Different Solidstate Welding Processesmentioning

confidence: 96%

“…Furthermore, different coating methods on the tool are also suggested to avoid tool erosion caused by loss of surface quality and inclusions of fragments inside the weld. 70 Also, hybrid (GTAW-assisted) FSW process, 60 ultrasonic vibration-assisted FSW process 38 improve the life of the tool is also claimed.…”

Section: Friction Stir Butt Weldingmentioning

confidence: 99%

“…Many of the manufacturing techniques have employed assisted ultrasonic vibrations for improving the properties of the final products. 91 Yu et al 38 fabricated joints of AA6061 and Ti6Al4V alloys using ultrasonic-assisted FSW (UaFSW).…”

Section: Other Friction-based Hybrid Processesmentioning

confidence: 99%

“…With this, Al to Ti alloy joining is employed in aerospace, automobile, 1-23 marine, 7,8,16 and defense industries 18,24 where current efforts are being made to ensure more values of strengthto-weight ratio and are attained at an affordable price. For instance, in aircraft manufacturing, the welding of riveted fuselage structures are replaced by skin stringer joints, 23,25 seat track, 22,[25][26][27][28] heat exchangers 7,8 or electric conductors in corrosive media, 29 tubing and pipework of propellant tanks, 30 medical industry, 2 architecture, 1 joining the Al skins to Ti ribs for aircraft, 31 aircraft structural parts, 32 joining of Ti alloy crust and Al alloy honeycomb (wing of airplanes), 27,33 cooling fin employed in aeroplane cabins are made from welding of Al and Ti, 27 experimental NASA YF-12 fighter wings, 27 transportation industries, [34][35][36][37][38] chemical industries, 39 cryogenics, nuclear, and thermal power station. 40 Further, there is another possibility of implementation of hybrid structures [41][42][43] i.e.…”

Section: Introductionmentioning

confidence: 99%

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Solid-state joining of aluminum to titanium: A review

Gadakh¹,

Badheka

Mulay

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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The dissimilar material joining of aluminum and titanium alloys is recognized as a challenge due to the significant differences in the physical, chemical, and metallurgical properties of these alloys, where the increasing demands for high strength and lightweight alloys in aerospace, defense, and automotive industries. Joining these two alloys using the conventional fusion techniques produces commercially unacceptable sound joints due to irregular, complex weld pool shapes, cracking and low strength, high residual stresses, cracks, and microporosity, and the brittle intermetallic compounds formation leads to poor formability or inferior mechanical properties. The formation of intermetallic compounds is inevitable but it is less severe in solid-state than in the fusion welding process. Hence, this article reviews on aluminum–titanium joining using different solid-state and hybrid joining processes with emphasis on the effect of process parameters of the different processes on the weld microstructure, mechanical properties along with the type of intermetallic compounds and defects formed at the weld interface. Among the various solid-state welding processes for aluminum–titanium joining, the following grades of aluminum and titanium alloys were employed such as cp Ti, Ti6Al4V, cp Al, AA1xxx, AA 2xxx, AA5xxx, AA6xxx, AA7xxx, out of which Ti6Al4V and AA6xxx alloys are the most common combination.

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Section: Other Friction-based Hybrid Processessupporting

confidence: 76%

Section: Minimum Imc Thickness Among Different Solidstate Welding Processesmentioning

confidence: 96%