Dissimilar friction stir welding of pure Ti and pure Al

Choi, Jeong-Won; Liu, Huihong; Fujii, Hidetoshi

doi:10.1016/j.msea.2018.05.117

Cited by 111 publications

(47 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Titanium and aluminum are attractive engineering metals in industrial applications because of their excellent properties, therefore, achieving the joining between two kinds of materials not only can combine their excellent characteristics, reduce the weight of the structure, but also save costs and further expand their application prospects. In view of this, some welding methods such as friction stir welding [1,2], roll-bonding [3], explosive welding [4], ultrasonic welding [5], resistance spot welding [6], laser welding [7] and arc welding-brazing [8,9] were applied to join titanium and aluminum. Previous studies reveal that the brittle intermetallic compounds (IMCs) layer formed at the welding interface seriously impair the mechanical properties of the joint [10,11].…”

Section: Introductionmentioning

confidence: 99%

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Zhao

Qiu

et al. 2019

Materials

View full text Add to dashboard Cite

Ti-Al diffusion couples, prepared by resistance spot welding, were annealed up to 112 h at 823, 848, and 873 K in ambient atmosphere. The interfacial microstructure was observed and analyzed using SEM and TEM. The growth characterization of intermetallic compound formed at the Ti/Al solid state interface was investigated. Only TiAl3 phase was detected in the interfacial zone, and its growth was governed by reaction-controlled mechanism in the previous period and by diffusion-controlled mechanism in the latter period. The activation energies were 198,019 and 122,770 J/mol for reaction-controlled and diffusion-controlled mechanism, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Zhao

Qiu

et al. 2019

Materials

View full text Add to dashboard Cite

show abstract

“…In welds between dissimilar materials of different families, the properties of the base materials have to be considered because of the formation of intermetallic compounds that have very different physical and mechanical properties from the base materials and influence the flow of materials in the stir zone [ 6 , 7 ]. However, even for dissimilar welds of materials within the same family, the influence of the properties of the materials on the formation of the weld can be significant.…”

Section: Introductionmentioning

confidence: 99%

Nugget Formation and Mechanical Behaviour of Friction Stir Welds of Three Dissimilar Aluminum Alloys

et al. 2020

View full text Add to dashboard Cite

The aim of this research was to investigate the influence of the properties of the base materials and welding speed on the morphology and mechanical behavior of the friction stir welds of three dissimilar aluminum alloys in a T-joint configuration. The base materials were the AA2017-T4, AA5083-H111, and AA6082-T6 alloys in 3 mm-thick sheets. The AA6082-T6 alloy was the stringer, and the other alloys were located either on the advancing or retreating sides of the skin. All the T-joint welds were produced with a constant tool rotation speed but with different welding speeds. The microstructures of the welds were analyzed using optical microscopy, scanning electron microscopy with energy dispersive spectroscopy, and the electron backscatter diffraction technique. The mechanical properties were assessed according to micro-hardness, tensile, and fatigue testing. Good quality welds of the three dissimilar aluminum alloys could be achieved with friction stir welding, but a high ratio between the tool’s rotational and traverse speeds was required. The welding speed influenced the weld morphology and fatigue strength. The positioning of the skin materials influenced the nugget morphology and the mechanical behavior of the joints. The joints in which the AA2017 alloy was positioned on the advancing side presented the best tensile properties and fatigue strength.

show abstract

“…About 73% increment in joining efficiency of process was observed with the assistance of cooling. Choi et al [12] evaluated the fracture strength and tried optimizing the same for pure Ti and Al metal joints formed through FSW. The large amount of interfacial sedimentation of Ti particle on Al metal and vice versa was observed at high probe offset and rotational speed, despite the base metal thickness.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Microstructure Analysis of AA2024 Welded Joints by Friction Stir Welding

Rajkumar¹,

Raja²,

Lingadurai³

et al. 2020

JNMES

View full text Add to dashboard Cite

Process of joining different components by the application of external heat has resulted in induced stress on metals. Friction stir welding has been developed in order to avoid such residual stress development while joining. In this present work, aluminium alloy AA2024 plates were welded by using Friction stir welding process. The experiments were conducted for different combinations of parameters such as rotational speed, transverse speed and axial load. Welded joints developed were tested for mechanical and microstructure analysis. Mechanical joints developed have a maximum hardness of 147.6 hv in nugget zone and maximum tensile strength of 368.76 N/mm 2. Response surface analysis carried out has revealed that transverse speed and rotational speed has high impact on the hardness and tensile strength respectively. The grains at the nugget zone were very fine and uni-axed improving their tensile strength.

show abstract

Dissimilar friction stir welding of pure Ti and pure Al

Cited by 111 publications

References 21 publications

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Nugget Formation and Mechanical Behaviour of Friction Stir Welds of Three Dissimilar Aluminum Alloys

Interfacial Microstructure Analysis of AA2024 Welded Joints by Friction Stir Welding

Contact Info

Product

Resources

About