Dissimilar friction stir welding of Ti–6Al–4V alloy and aluminum alloy employing a modified butt joint configuration: Influences of process variables on the weld interfaces and tensile properties

Li, Bo; Zhang, Zhenhua; Shen, Yifu; Hu, Weiye; Luo, Lei

doi:10.1016/j.matdes.2013.07.019

Cited by 137 publications

(52 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using frictional technology to improve the surface properties of materials is a common method in various manufacturing techniques, such as automobiles and aircraft engines [1][2][3][4]. The frictional technology of Ti-6Al-4V alloy and Al materials is widely used in friction stir welding and blade protection [5]. For example, the strength and high temperature properties of Ti-6Al-4V alloy are improved by friction stir welding [6].…”

Section: Introductionmentioning

confidence: 99%

Formation of Diffusion Layer on Ti-6Al-4V Alloy during Longtime Friction with Al

Liu

Huang

et al. 2019

Metals

View full text Add to dashboard Cite

Elements’ diffusion between Ti-6Al-4V alloy and Al in the process of sliding was investigated from 400 °C to 600 °C. The results showed that the atoms were diffused at the Ti-6Al-4V/Al interface. When sliding at 400 °C and 500 °C, no intermetallic compound was detected on the surface of Ti-6Al-4V alloy. When sliding at 600 °C, intermetallic TiAl3 was formed and grew on the surface of Ti-6Al-4V alloy. The diffusion thickness of Al atoms on the surface of Ti-6Al-4V alloy increased with increasing time and temperature. The diffusion kinetic equation of Al atoms on the surface of Ti-6Al-4V alloy was successfully established. The diffusion activation energy of Al atoms in the sliding process was calculated to be 28.22 kJ·mol−1 and the dynamic index n was 0.5. The diffusion growth of Al atoms was controlled by normal parabolic law with time.

show abstract

Section: Introductionmentioning

confidence: 99%

Formation of Diffusion Layer on Ti-6Al-4V Alloy during Longtime Friction with Al

Liu

Huang

et al. 2019

Metals

View full text Add to dashboard Cite

show abstract

“…Friction Stir Welding (FSW) is a solid-state welding process developed by The Welding Institute (TWI) in 1991 in the United Kingdom, which has been extensively studied due to its applicability. It is used especially in low melting point alloys such as Al, Mg and Cu [1][2][3] and heat treatable Aluminum alloys, such as the 2XXX and 7XXX series, as welding them by conventional techniques generates loss of mechanical properties, as well as formation of solidification cracks, brittle fracture and oxide formation due to the high temperatures reached in conventional welding processes 4 . Such alloys are widely used in aeronautic applications due to their high resistance combined with low density, as well as good fatigue resistance properties, as in the case of the 2XXX series [5][6] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Weld Parameters on Residual Stress, Hardness and Microstructure of Dissimilar AA2024-T3 and AA7475-T761 Friction Stir Welded Joints

Delijaicov¹,

Silva²,

Resende

et al. 2018

Mat. Res.

View full text Add to dashboard Cite

This study presents the effect of the welding parameters variation on the results of forces, temperature, residual stresses and Vickers micro hardness of dissimilar butt joints of AA2024-T3 and AA7475-T761 welded by friction stir welding (FSW). The tool rotational speed, feed rate and tool tilt angle were investigated using the Design of Experiments method. The obtained results of penetration force, temperature in the weld zone compared with the microscopic analysis of the microstructure showed that it is necessary a minimum amount of force and heat input to obtain a defect free weld zone. It was also notable that, friction stir welding has a wide stability range of its most significant parameters-rotational speed and feed rate-which grantee this minimum condition. Micro hardness' profiles showed the effect of the grain size refinement towards the thermo-mechanically affected zone as well as, the effect of recrystallization inside the nugget. Residual stresses' profiles showed a tensile stress peak at the shoulder contact area due the pressure with the base material on thermo-mechanically affected zone and the stress relief effect caused by high temperatures in the nugget resulting in a decrease in residual stress value. The most significant variables for residual stress results were rotational speed of the tool and welding feed rate, once their interaction rule the heat input in the weld zone.

show abstract

“…Dissimilar metals welding of an Al alloy to a Ti alloy (Al-to-Ti) is industrially important, particularly for the aerospace industry. Thus, friction stir welding (FSW) which is a solid state process has been studied in the last few years for Al-to-Ti welding in both butt joint [2][3][4][5][6][7] and lap joint geometry [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Microstructures in interface region and mechanical behaviours of friction stir lap Al6060 to Ti–6Al–4V welds

Chen

Yazdanian

2015

Materials Science and Engineering: A

View full text Add to dashboard Cite

Dissimilar friction stir welding of Ti–6Al–4V alloy and aluminum alloy employing a modified butt joint configuration: Influences of process variables on the weld interfaces and tensile properties

Cited by 137 publications

References 31 publications

Formation of Diffusion Layer on Ti-6Al-4V Alloy during Longtime Friction with Al

Formation of Diffusion Layer on Ti-6Al-4V Alloy during Longtime Friction with Al

Effect of Weld Parameters on Residual Stress, Hardness and Microstructure of Dissimilar AA2024-T3 and AA7475-T761 Friction Stir Welded Joints

Microstructures in interface region and mechanical behaviours of friction stir lap Al6060 to Ti–6Al–4V welds

Contact Info

Product

Resources

About