Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer

Wu, Fan; Chen, Wei; Zhao, Bing; Hou, Hongliang; Zhou, Wenlong; Li, Zhiqiang

doi:10.3390/ma13051103

Cited by 10 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strength of the weld joints was better compared to no interlayer for the same welding conditions used. Wu et al [83] also reported diffusion bonding of another aluminium–lithium alloy (AA 1420) but with an interlayer made of pure aluminium. It was reported that when a pure aluminium interlayer was introduced into the diffusion bonding process, the diffusion of elements across the bond marginally improved the interface integrity and weld strength in welds obtained at lower bonding temperatures.…”

Section: Diffusion Bondingmentioning

confidence: 99%

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Zlatanović

Bergmann

Baloš

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

This review sheds novel insights on the residual oxide behaviour of solid-state weld joints of aluminium alloys. Understanding the influence of oxides on the aluminium surface before and during welding, its impact on the weld structure and possible solutions for reducing its impact were addressed. The solid-state techniques most relevant to the transportation sector namely, diffusion bonding, friction stir spot welding and ultrasonic welding were surveyed, analysed and reviewed. During this analysis, the implication of the presence of oxides on aluminium substrate affecting the metallurgical characteristics of the weld joints was reviewed. Visible defects such as voids, delamination, kissing bond and hook defects, and problems associated with these defects were analysed and few suggestions are made to partially overcome these issues.

show abstract

Section: Diffusion Bondingmentioning

confidence: 99%

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Zlatanović

Bergmann

Baloš

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…Generally, the difusion bonding process is carried out in a vacuum [27,28] or an inert [29,30] chamber to eliminate the formation of oxides at the interface. However, Pilling and Ridley [31] emphasized the vacuum-free solid-state difusion bonding of AA7475 conducted in a furnace attached to an Instron universal testing machine (UTM) by employing a chemical pickling of the faying surfaces of aluminium alloy before the difusion bonding process to inhibit the oxide formation at the interface.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Evolution in Nonvacuum Solid-State Diffusion Bonded Joints of AA2219

Vatnalmath

Auradi

Bharath

et al. 2023

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Solid-state diffusion bonding of AA2219 alloy is carried out under the nonvacuum condition to form AA2219/AA2219 joints. In the currently adopted method, AA2219 alloys are joined under the bonding temperature of 450–500°C, bonding pressure of 10 MPa, and bonding time of 30 min. Chemical cleaning is adopted to protect the joining surfaces from reoxidation before the diffusion bonding process. Microstructure evolution at the bonded joints is characterized using optical microscopy, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The hardness at the bonded joints increased with the increase in the bonding temperature. The parent metal structure is achieved at 500°C bonding temperature with an increase in hardness of 112.14 Hv at the bond interface. There is no evidence of intermetallic found at the interface, as confirmed by X-ray diffraction (XRD).

show abstract

“…Using lightweight materials is an effective way to reduce the weight of structures without compromising performance [1]. The 1420 aluminium–lithium alloys (1420 Al–Li) have been widely used in the aerospace industry because of its high strength-to-density ratio and superior corrosion resistance capacity [2]. There are several applicable techniques for joining aluminium alloy sheets, including traditional riveting [3], bonding [4] and friction stir welding [5].…”

Section: Introductionmentioning

confidence: 99%

Self-piercing riveting for single-strap butt joints in similar aluminium alloys

Song

Xing

et al. 2021

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

The self-piercing riveting (SPR) single-strap butt joints (butt joint) were fabricated in similar sheets of Al5052 aluminium alloy and 1420 aluminium-lithium alloy. Mechanical characteristics of SPR butt joints of different materials were discussed comparing with their corresponding SPR single-lap joints (lap joint). The effects of the rivet pitch and the strap length on the butt joints of different materials were investigated. Results indicated that the lap joints have better performance in strength and stiffness, while the butt joints have more superior shock resistance capacity. The strap length had some impact on the failure behaviour of the joint but not the joint strength. The load borne capacity of the butt joints was highly dependent on rivet pitch.

show abstract

Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer

Cited by 10 publications

References 30 publications

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Effect of surface oxide layers in solid-state welding of aluminium alloys – review

Microstructural Evolution in Nonvacuum Solid-State Diffusion Bonded Joints of AA2219

Self-piercing riveting for single-strap butt joints in similar aluminium alloys

Contact Info

Product

Resources

About