Hardening of Aluminium Alloy 5556 and Copper C11000 Obtained by the Additive Electron-Beam Method with the Following Friction Stir Processing

Abstract

The results of the work show that a hardened layer with almost complete absence of pores and delamination and increased mechanical properties appears in the surface layer at the depth of processing. The structure of the surface layer is similar to that obtained by friction stir processing of flat rolled products. Mechanical tensile testing of the gradient zone between processed and unprocessed material shows that fracture occurs mainly along the boundary between the processing zone and the additively manufactured material. Thus, the combination of wire-feed electron-beam additive technology and friction stir processing makes it possible to obtain components with a hardened surface layer of the finished product.