Microstructure and Properties of an АА2139 Alloy Welded Joint Produced by Linear Friction Welding

Abstract

Microstructure and mechanical properties of a solid-phase joint produced by linear friction welding of AA2139 alloy samples have been studied. It has been shown that the weld formed as a result of LFW of two rectangular-shaped samples does not have macroscopic defects and has a high strength. It has been that the microstructure transforms significantly in the weld line during plastic deformation and deformation heating.

Keywords

• aluminum alloy
• linear friction welding
• microstructure
• mechanical properties.