Open AccessInfluence of copper on the phase composition and strength of laser-welded connections
Author(s) -
А. Г. Маликов,
А. М. Оришич,
Е. В. Карпов,
Н. В. Булина
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1404/1/012029
Subject(s) - welding , copper , materials science , microstructure , metallurgy , laser , aluminium , phase (matter) , laser beam welding , composition (language) , chemical composition , composite material , chemistry , optics , linguistics , physics , philosophy , organic chemistry
This paper deals with the investigation of the influence of copper on the structure-phase composition and strength of laser-welded connections of aluminum alloys of the system Al-Cu-Mg, Al-Cu-Mg-Li, Al-Cu-Li. The microstructure, mechanical characteristics and chemical composition of the welded joints have been investigated. It is founded that the laser welding results in the reduction of copper concentration in the solid solution and growth of this concentration on the dendritic boundary.