An arc additive manufacturing aluminum magnesium alloy wire

Abstract

The application relates to the technical field of metal additive manufacturing, and particularly relates to a kind of aluminum magnesium alloy wire suitable for electric arc additive manufacturing. The aluminum magnesium alloy wire is composed of the following components in percentage by mass: magnesium Mg: 6.5-7.5%, manganese Mn: 1.0-2.0%, scandium Sc: 0.15-0.3%, zirconium Zr: 0.1-0.2%, titanium Ti: 0.08-0.15%, iron Fe: <=0.2%, silicon Si: <=0.08%, and the rest is Al and inevitable impurity elements. In the process of wire preparation, the crude bar is subjected to multiple times of forging, annealing, drawing, hanging cutting and ultrasonic cleaning to prepare a solid wire. The solid wire has fine grains, good strength and toughness and no plastic anisotropy after electric arc additive forming, and meets the use requirements in the field of aerospace.

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