The effect of the electron beam welding speed on the chemical composition,structure and properties of welded joints in D16 aluminium alloy |
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| Authors: | V. K. Dragunov E. V. Terentev A. L. Goncharov A. Yu. Marchenkov |
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| Affiliation: | Scientific and Research Institute of the Moscow Institute of Energy, Moscow, Russia |
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| Abstract: | Experiments were carried out to investigate the effect of electron beam welding speed in the range 20–120 m/h on the properties of welded joints in 20-mm-thick plates of D16 alloy. The distribution of magnesium in the cross section of welded joints in dependence on the welding speed was determined. The structure of the welded joints was investigated by optical and electron microscopy. The hardness in different zones of the welded joints after welding and different types of heat treatment was measured. The relationship between the chemical composition, structure and mechanical properties of the welded joints produced at different welding speeds was determined. |
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| Keywords: | Electron beam welding aluminium alloy D16 welding speed microstructure of the welding joints |
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