Effect of Al3Er Particles on the Structure, Mechanical Properties, and Fracture of AA5056 Alloy After Casting and Deformation Treatment

The structure of the AA5056-Al3Er composite and the initial alloy was studied by optical and scanning electron microscopy. The introduction of 0.23 wt.% particles does not modify the structure of the aluminum alloy, but, due to dispersion hardening, increases the ultimate tensile strength and ductility of the metal matrix. Rolling the AA5056-Al3Er alloy leads to a more uniform distribution of particles in the volume of the material, but does not increase its yield strength or ultimate tensile strength. A more uniform distribution of deformation due to the influence of Al3Er particles made it possible to increase the ductility of the AA5056 alloy.

Automated summary

The study showed that introducing Al3Er particles can improve the ultimate tensile strength and ductility of AA5056 alloy, while achieving a more uniform distribution of particles. Rolling the alloy results in a more uniform distribution of particles in the material, but does not increase its yield strength or ultimate tensile strength.