Effect of the Welding Wires Variation on Structure and Mechanical Property of Fusion-welding Joint of 2050 Al-Li Alloy Plate
Welding crack susceptibility of 2050 Al-Li alloy is studied by using the cross-lap-joints method.Difference of welding wire component on the solidification crack rate and liquefied crack rates is analyzed.And the microstructure,fracture morphology,mechanical properties of the weld-joint are characterized.Results show that the solidification crack rate and liquefied crack rate of the weld-joint with Al-Cu-Si-Ti-Sc-Ce-B wire are zero,and the strength coefficient of the weld-joint reaches 0.7.
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