Microstructure and mechanical behavior of friction spot welded AA6181-T4/Ti6Al4V dissimilar joints

Plaine, Athos Henrique; Suhuddin, U.F.H.; Alcântara, N.G.; Santos, J.F. dos

doi:10.1007/s00170-017-0439-2

Cited by 26 publications

(14 citation statements)

References 27 publications

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“…The observation of dendritic structure indicated the material melting. The average width of the interfacial reaction layers was approximately 2 μm [25].…”

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

“…The formation of intermetallic compounds at the interface during the welding process was analyzed [24][25][26][27]. Plaine et al [24] observed that the joint interface was mainly a continuous layer, consisting of large elongated grains and small fine grains of TiAl 3 intermetallic compounds.…”

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

“…In addition, Al/Fe IMC (intermetallic compounds) was also presented in the reaction layer near the TiAl 3 /Ti interface. They also demonstrated that some Si element was dissolved in the TiAl 3 layer (approximately 10%) [25] and a typical dendritic structure was formed under the highest rotation speed, which resulted in a complex and cracked interfacial reaction layers near the Ti/Al interface. Figure 8 shows the microstructure of the Ti/Al interface with a rotation rate of 3000 rpm.…”

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

See 2 more Smart Citations

Refill Friction Stir Spot Welding of Similar and Dissimilar Alloys: A Review

Feng

Tang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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Refill friction stir spot welding, also known as friction spot welding (FSpW), is a solid-state welding process suitable for spot joining of lightweight materials. Through the efforts of improving joint quality for similar and dissimilar materials, for example, aluminum and magnesium, this joining technology is well developed. The joining mechanism and process characteristics of FSpW have been widely studied. However, the application of FSpW in industry has not been entirely successful. In this review article, the research of similar and dissimilar material joints, such as, Al/Cu, Al/Ti, Al/Mg and Al/ Steel, is summarized. The microstructural features and mechanical properties of the joints, welding tool and the application development are discussed in detail.

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“…The observation of dendritic structure indicated the material melting. The average width of the interfacial reaction layers was approximately 2 μm [25].…”

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

Section: Al/ti Dissimilar Alloy Weldmentioning

confidence: 99%

See 1 more Smart Citation

Refill Friction Stir Spot Welding of Similar and Dissimilar Alloys: A Review

Feng

Tang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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show abstract

“…Hybrid structures for dissimilar alloys, such as Ti/Mg [ 1 ], Fe/Al [ 2 ], and Ti/Al [ 3 ], have attracted growing attention in the aircraft and auto industries, owing to the advantages in reducing weight and saving energy. The Ti/Al joint combines the advantages of Ti (high strength and corrosion resistance) and Al (low weight and low cost) sufficiently [ 4 ]. Unfortunately, a huge challenge exists in joining Ti and Al together [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The formation of this brittle IMC layer depends on temperature-time cycles during the welding process [ 8 ]. Some processes of joining, for example brazing [ 9 ], friction stir welding [ 4 ], arc welding-brazing [ 10 ], and laser welding-brazing [ 11 ], were studied for improving Ti/Al joint strength. Laser beams could provide an appropriate energy output and high heating/cooling rate; thus, laser welding-brazing techniques have attracted increasing attention in Ti/Al joining [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

The Microstructure and Mechanical Properties of Dual-Spot Laser Welded-Brazed Ti/Al Butt Joints with Different Groove Shapes

Lei

Zhang

et al. 2020

Materials

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Laser welding-brazing was performed to join Ti and Al together. The dual-spot laser beam mode was selected as the heat source in this study. Ti-6Al-4V and 6061-T6 Al alloys were selected as the experimental materials. Al-12Si welding wire was selected as the filler material. The effect of groove shape on the weld appearance, microstructure, temperature field, and mechanical performance of Ti/Al welded-brazed butt joints was investigated. The interfacial intermetallic compound (IMC) layer at the Ti/Weld brazing interface was inhomogeneous in joints with I-shaped and Y-shaped grooves. In Ti/Al joints with V-shaped grooves, the homogeneity of temperature field and IMC layer was improved, and the maximum thickness difference of IMC layer was only 0.20 μm. Nano-sized granular Ti7Al5Si12, Ti5Si3, and Ti(Al,Si)3 constituted the IMCs. The tensile strength of Ti/Al joints with V-shaped grooves was the highest at 187 MPa. The fracture mode transformed from brittle fractures located in the IMC layer to ductile fractures located in the Al base metal, which could be attributed to the improvement of the IMC layer at the brazing interface.

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Experimental investigation on cross wedge rolling of composite 42CrMo/Q235 laminated shaft

Sun

Peng

et al. 2018

Int J Adv Manuf Technol

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Microstructure and mechanical behavior of friction spot welded AA6181-T4/Ti6Al4V dissimilar joints

Cited by 26 publications

References 27 publications

Refill Friction Stir Spot Welding of Similar and Dissimilar Alloys: A Review

Refill Friction Stir Spot Welding of Similar and Dissimilar Alloys: A Review

The Microstructure and Mechanical Properties of Dual-Spot Laser Welded-Brazed Ti/Al Butt Joints with Different Groove Shapes

Experimental investigation on cross wedge rolling of composite 42CrMo/Q235 laminated shaft

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