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Research on the Microstructure of Laser Beam Welded Sc-Modified AA2519-F Extrusion

Kosturek Robert, Śnieżek Lucjan, Grzelak Krzysztof, Wachowski Marcin

Archives of Metallurgy and Materials

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2022

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Vol. 67, iss. 2

773--778

EN

In this paper, the microstructure of laser beam welded Sc-modified AA2519-F has been taken under investigation. The welded joint has been produced using Fanuc 710i industrial robot equipped with YLS-6000 6 kW laser beam source. The welding speed and laser power were equal to 0.75 m/min and 3.2 kW, respectively. The investigation involved microstructure observations with the use of both light microscope and scanning electron microscope with energy dispersive spectroscopy (EDS) analysis of chemical composition and microhardness distribution measurements. It has been stated that laser beam welding allows to obtain Sc-modified AA2519-F weld of good quality, characterized by the presence of an equiaxed grain zone containing scandium-rich precipitates adjacent to the fusion boundary.

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Microstructure and mechanical properties of Sc-modified AA2519-T62 laser beam welded butt joints

Kosturek Robert, Grzelak Krzysztof, Torzewski Janusz, Wachowski Marcin, Śnieżek Lucjan

Advances in Materials Science

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2022

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Vol. 22, nr 4(74)

57--69

EN

The fundamental aim of the research is to investigate the microstructure and mechanical properties of the AA2519-T62 laser beam welded joints obtained with various values of welding velocity. For the constant value of laser power (3.2 kW) three joints have been produced with various values of welding velocity: 0.8, 1.1, and 1.4 m/min. The joints have been subjected to microstructure analysis (including both light and scanning electron microscope), microhardness measurements, tensile tests, and fractography of tensile samples. The established values of joint efficiency contain within the range of 55-66% with the highest value (66%) reported for the joint obtained with 1.1 m/min welding velocity. The produced welds have noticeable participation of pores, which tends to increase together with the value of welding velocity. In all cases, the failure has occurred in the fusion zone by ductile fracture.

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Ocena mikrotwardości oraz własności wytrzymałościowych trimetalu AA2519-AA1050-TI6AL4V po różnych obróbkach cieplnych

Najwer M., Niesłony P.

Przegląd Spawalnictwa

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2016

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R. 88, nr 4

16--18

PL

W artykule przedstawiono wyniki badań trimetalu AA2519- AA1050-Ti6Al4V połączonego metodą zgrzewania wybuchowego. Określono charakterystykę gięcia blach z trimetalu w stanie surowym, po wyżarzaniu w temperaturze 530°C przez 120 minut, oraz po wyżarzaniu z dodatkowym starzeniem w 165°C przez 600 minut. Dla otrzymanych w taki sposób próbek przeprowadzono próby gięcia zgodnie z ASTM E-290-14 oraz analizę zmian mikrotwardości w złączu platerowanym. Na podstawie przeprowadzonych badań stwierdzono, że zastosowane obróbki cieplne zwiększają, w różnym stopniu, wytrzymałość trimetalu oraz twardość poszczególnych jego warstw. Największy wzrost wytrzymałości jak i mikrotwardości uzyskano po wyżarzaniu z dodatkowym starzeniem.

EN

The article presents results of tests of the trimetalic joint AA2519-AA1050-Ti6Al4V performed by explosive welding. Shown characteristics of bending of trimetal in a raw state, after annealing at 530°C for 120 minutes and annealing with additionally aging at 165°C for 600 minutes. For the obtained specimens were performed bending tests acc. to ASTM E-290-14 and analysis of microhardness changes in the joint. Performed studies shown that the applied heat treatments increases, in varying degrees, strength and microhardness of each layer of trimetal. The largest increase of strength and microhardness was obtained after annealing with additional aging.