Investigation of the weldability of an aluminium–lithium alloy

Lukin, V. I.; Skupov, A.A.; Ioda, E. N.

doi:10.1080/09507116.2017.1388047

Cited by 2 publications

(3 citation statements)

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“…The Alloy 1420 was used for commercial applications for the 1st time in MIG-29M aircraft modifications by replacing riveted joints with welding, reducing the weight by 10% when compared to the riveted structure [92]. Figure 6 reveals that triplanar optical micrographs of the AA2198 base alloy in the T8 temper.…”

Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

“…The micrographs reveal prominent features, including large grains ranging from 200 to 400 μm in the rolling (L) direction. Additionally, the microstructure exhibits pancaked elongated grains, characteristic of sheet microstructure, observed in both the transverse (T) and short transverse (S) directions [93].Welding is the only fabrication technique used in the aerospace industry for permanent joints, allowing for significant reductions in labor weight, and energy consumption while improving service life, reliability, environmental safety, and material utilization efficiency, among other benefits [92,94,95]. A sizeable Welded structures are prone to hand failure due to the hot cracking and porosity formation inherent in high-strength Al alloys.…”

Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

“…The addition of Scandium to Al-Mg alloys reduces the width of the solidification temperature range, resulting in increased joint strength when using AMg63 filler and decreased power consumption when using AMg4 filler. The fracture surfaces of specimens of joints produced by welding with AMg63, AMg63+5 C, AMg4, and AMg4+Sc filler material have a flexible dimpled structure consistent with Scandium's beneficial effect and a decrease in Mg content [92]. On a variety of unfinished products, the effect of metallurgical factors on the formation of defects in the critical zone (fusion zone) has been investigated.…”

Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

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Improving the properties of aluminum-lithium composites in aerospace applications: review

Polayya,

Rao,

Veeresh Kumar

2024

Eng. Res. Express

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Aluminium (Al)-Lithium (Li) alloys have found widespread applications in aerospace and military domains. Primarily, they are found to have low density, leading to weight savings and several economic considerations. The paper explores the historical development of Al-Li alloys across distinct generations, highlighting their evolution. It also delves into the diverse applications of Al-Li alloys in aerospace and military domains. A concise discussion of the mechanical behaviour and tensile strengths is presented across the first, second, and third generations of Al-Li alloys. This review includes a discussion on microstructural investigation, emphasizing metallurgical factors such as increased efficiency, various precipitate phases, and intergranular features. Weldability and tribological properties of Al-Li alloys, with a specific emphasis on the corrosion aspects of these alloys are discussed. Furthermore, the review assesses the future development and manufacturing flexibility of Al-Li Metal Matrix Composites. In summary, this comprehensive review consolidates insights into the utilization, evolution, and characteristics of Al-Li Metal Matrix Composites, providing valuable information for researchers and practitioners aiming to enhance the performance of these alloys in aerospace applications.

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Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

Section: Weldability Of Al-li Alloysmentioning

confidence: 99%

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