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

Archives of Metallurgy and Materials

article

R. Kosturek¹  L. Śnieżek¹  K. Grzelak¹  M. Wachowski¹ 

[1] Military University of Technology, Faculty of Mechanical Engineering

关键词: aluminum;    extrusion;    AA2519;    microstructure;    laser beam welding;   

DOI  :  10.24425/amm.2022.137817

学科分类：物理（综合）

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In this paper, the microstructure of laser beam welded Sc-modified AA2519-F has been taken under investigation. The weldedjoint has been produced using Fanuc 710i industrial robot equipped with YLS-6000 6 kW laser beam source. The welding speedand laser power were equal to 0.75 m/min and 3.2 kW, respectively. The investigation involved microstructure observations withthe use of both light microscope and scanning electron microscope with energy dispersive spectroscopy (EDS) analysis of chemicalcomposition and microhardness distribution measurements. It has been stated that laser beam welding allows to obtain Sc-modifiedAA2519-F weld of good quality, characterized by the presence of an equiaxed grain zone containing scandium-rich precipitatesadjacent to the fusion boundary.

【 授权许可】

CC BY-NC