Investigation of aluminum alloys modified ultrafine powders aluminum oxide

Analysis microstructure of the alloys obtained showed that the introduction of alumina nanoparticles brings to a decrease grain size of alloys from 339 to 174 mkm, while residual porosity not more than 2%. Introducing aluminum oxide particles increases the yield strength of 18 to 40 MPa and a ductility increased from 1,5% to 9, besides that the tensile strength, from to the initial alloy is significantly increase