Linear Friction Welding of a Commercial Aluminum Alloy
The mechanical properties and microstructure of a solid-phase compound produced by linear friction welding (LFW) of commercial Al-4.4%Cu-0.5%Mg-0.4%Mn-0.5%Ag alloy have been studied. The samples of Al-Cu-Mg-Ag alloy were produced by ingot metallurgy and subjected to thermomechanical treatment to get different initial microstructures. It has been shown that the LFW of two rectangular-shaped samples with different microstructures enabled forming a well-done welding joint without macroscopic defects. The LFW samples have shown high mechanical properties. Strength has reached 452 MPa, and plasticity has become not less 15%. The microstructure transformation in the welding joint during plastic deformation and deformation heating at LFW is discussed.
A.A. Radionov, G.G. Mikhailov, D.A. Vinnik
F.F. Musin et al., "Linear Friction Welding of a Commercial Aluminum Alloy", Materials Science Forum, Vol. 870, pp. 608-613, 2016