اثر مقدار آلومينيوم بر خواص مكانيكي و ريزدانگي آلياژهاي منيزيم در فرآيند قالب زاويه دار لوله اي موازي

Effect of aluminium content on mechanical properties and grain refinement of Mg alloy in PTCAP process

Aluminium as an alloying element has a great effect on different alloys such magnesium ones. However, the mechanical properties of these alloys are not appreciable. Parallel Tubular Channel Angular Pressing (PTCAP) is a recently developed novel intense plastic deformation method appropriate for fabrication of ultrafine-grained and nano-structured cylindrical tubes. In this study, this technique was applied to AZ31 and AZ61 alloys for one pass at 350 °C. and the effects on the grain size and mechanical properties were studied. This results showed that the 1- passes PTCAPed AZ61 specimen exhibits the best elongation of about 23 %. Furthermore, the maximum tensile strength is found for 1-pass PTCAPed AZ61. In addition, the best refinement is found to occur at the 1-pass PTCAPed AZ31 specimen.

Aluminium as an alloying element has a great effect on different alloys such magnesium ones. However, the mechanical properties of these alloys are not appreciable. Parallel Tubular Channel Angular Pressing (PTCAP) is a recently developed novel intense plastic deformation method appropriate for fabrication of ultrafine-grained and nano-structured cylindrical tubes. In this study, this technique was applied to AZ31 and AZ61 alloys for one pass at 350 °C. and the effects on the grain size and mechanical properties were studied. This results showed that the 1- passes PTCAPed AZ61 specimen exhibits the best elongation of about 23 %. Furthermore, the maximum tensile strength is found for 1-pass PTCAPed AZ61. In addition, the best refinement is found to occur at the 1-pass PTCAPed AZ31 specimen.