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Articles

Special features of the formation of electron beam welded joints in pressed strips of a high-strength aluminium alloy of the Al–Zn–Mg–Cu system

, , , , , & show all
Pages 535-538 | Published online: 09 Mar 2012
 

Abstract

The special features of electron beam welding of pressed strips of the V-1963-strength aluminium alloy of the Al–Zn–Mg–Cu system with a thickness of 40 mm are investigated. The results of tests of the welded joints in static tensile loading, bending, and impact toughness of the weld metal are presented. It is shown that the strength of the welded joints equals 0.7–0.8 of the strength of the parent material. The results of investigations of the macro- and microstructure of the welded joints are generalized and it is shown that the welded joints are characterized by the formation of an equiaxed fine-grained structure with the grain size of 5–10 μm.

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