High strength aluminum alloys are commonly used as structural materials, particularly in the areas of industry where high specific strength is required. It has been already recognized that among all wrought aluminum alloys, precipitation strengthened 2xxx and 7xxx series alloys exhibit the highest mechanical properties. However, it is also known that those alloys suffer from poor corrosion resistance. Contrary, 5xxx series are characterized by excellent corrosion resistance properties and moderate strength. It is known that mechanical properties of Al-Mg system can be effectively increased by the plastic working or structure refinement. In this work, results of RS-PC (rapid solidification followed by plastic consolidation) material preparation route in application to the commercial EN AW-5083 alloy are presented. For comparison, conventionally cast and extruded EN AW-5083 alloy was studied as well. It was found that in as-extruded condition RS-PC material exhibits 50% higher yield strength (YS = 300 MPa) with respect to conventionally prepared alloy (YS = 200 MPa). Further increase of strength was obtained by cold rolling. Such high mechanical properties of RS-PC alloys were found to be a consequence of highly refined structure with an average grain size below 1 µm. Received results suggest than RS-PC 5083 aluminum alloy, can be considered as high strength material comparable to precipitation strengthened 2xxx series aluminum alloys.Keywords: rapid solidification, plastic consolidation, sub-microcrystaline aluminum alloys, EN AW-5083 alloy
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