Electron-beam weld solidification structures and properties in Al3LiX alloys

Bowden, D. M.; Meschter, P. J.

doi:10.1016/0036-9748(84)90269-2

Cited by 20 publications

(3 citation statements)

References 2 publications

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“…Gutierrez et al (1996) suggested that EQZ formation was closely linked to Al 3 (Li, Zr)-aided nucleation. However, Bowden and Meschter (1984) did not observe Al 3 Zr for a high (B0.5%) Zr-containing alloy in the as-welded condition, but it was present in the solution treated and aged condition.…”

Section: Experimental Observationsmentioning

confidence: 67%

“…However, instead of epitaxial growth, a fine EQZ has been observed to form near the fusion line in AlÀLi alloys welded with a variety of methods: LBW (Lee et al, 1996;Sriram et al, 1993), variable polarity plasma arc (VPPA) (Soni et al, 1996), electron beam (EB) (Bowden and Meschter, 1984), gas metal arc (GMA) (Padmanabham et al, 2005), and GTA (Gutierrez et al, 1996).…”

Section: Experimental Observationsmentioning

confidence: 99%

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Welding Aspects of Aluminum–Lithium Alloys

Reddy

Gokhale

2014

Aluminum-Lithium Alloys

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Section: Experimental Observationsmentioning

confidence: 67%

Section: Experimental Observationsmentioning

confidence: 99%

Welding Aspects of Aluminum–Lithium Alloys

Reddy

Gokhale

2014

Aluminum-Lithium Alloys

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“…Despite the fact that this technology has been known for over 60 years, in the last decade there has been a continuous increase in interest from both scientific units and industry. The electron beam welding (EBW) process consists of using the kinetic energy of electrons moving in a vacuum at a high speed (up to 200 km/s) [18][19][20][21]. The beam produced and formed in the electron gun goes to the area of the working chamber, where, falling on the contact areas of the joined objects, it melts it with heat obtained by bombarding it in a vacuum with a concentrated electron beam of high energy up to 10 12 W/mm 2 .…”

Section: Introductionmentioning

confidence: 99%

Research of Friction Stir Welding (FSW) and Electron Beam Welding (EBW) Process for 6082-T6 Aluminum Alloy

et al. 2023

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The paper presents the results of the joining tests of the EN AW-6082 T6 alloy. The materials were joined using the EBW high-energy (electron beam welding) and friction stir welding (FSW) methods. In the case of FSW welding, the following parameters were used: the linear speed was 355 mm/min, and the rotational speed of the welding tool was 710. In the case of EBW welding, the following parameters were used: accelerating voltage U = 120 kV, beam intensity I = 18.7 mA, welding speed v = 1600 mm/min and, in the case of a smoothing weld, U = 80 kV, beam intensity I = 17 mA, and welding speed v = 700 mm/min. Comprehensive microstructural tests of all welded joints (MO, SEM and TEM) and mechanical property tests (tensile and hardness tests) were carried out. The topographies of the fractures after the tensile test were also examined. Based on the results, it was found that the strength properties of the EBW joint were reduced by 23% and the FSW joint by 38% compared to the base material. A decrease in elongation was also noted, with an FSW elongation of 7.2% and an elongation of 2.7% for EBW. In the case of the EBW joint, magnesium evaporation was found in the weld during welding, while in the FSW joint, the dissolution of the Mg2Si particles responsible for strengthening the material during heat treatment to the T6 state was observed.

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