The physical processes which have an influence on the change in
chemical composition of the weld seam during laser beam welding are
analysed in this paper. The problem of evaporation and diffusion of
admixtures has been solved. The results of the calculations agree well
with experimental data.
Abstract. Friction stir weld joint of aluminum/magnesium alloy has been structurally characterized after tensile testing. A butt-weld flaw which a surface of joining between two sheets has been revealed. This defect dictates the specificity of sample's fracture in a tensile test.
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