Analysis of the Deformability of Two-Layer Materials AZ31/Eutectic / Analiza Możliwości Odkształcania Plastycznego Materiału Dwuwarstwowego AZ31/Eutektyka

Abstract

AnAlysIs of the deformAbIlIty of two-lAyer mAterIAls AZ31/eutectIcAnAlizA możliwości odksztAłcAniA plAstycznego mAteriAłu dwuwArstwowego Az31/eutektykAThe paper present the results of physical simulation of the deformation of the two-layered Az31/eutectic material using the Gleeble 3800 metallurgical processes simulator. The eutectic layer was produced on the Az31 substrate using thermochemical treatment. The specimens of Az31 alloy were heat treated in contact with aluminium powder at 445°C in a vacuum furnace. Depending on the heating time, Al-enriched surface layers with a thickness of 400, 700 and 1100 µm were fabricated on a substrate which was characterized by an eutectic structure composed of the Mg17Al12 phase and a solid solution of aluminium in magnesium. In the study, physical simulation of the fabricated two-layered specimens with a varying thickness of the eutectic layer were deformed using the plane strain compression test at various values of strain rates. The testing results have revealed that it is possible to deform the two-layered Az31/eutectic material at low strain rates and small deformation values.

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

“…Annealing includes full annealing and stress relief annealing, which full annealing making the grain recrystallize or even grow up and increase the plastic and decrease the strength of the material [9,10]. The stress relief annealing can not only reduce or dispel the residual stress produced in cold and hot working and forming of deformed magnesium alloy products, but also eliminate the residual stress in castings or ingots [11,12]. In the rolling process of magnesium alloy sheet, the grain size and shape of each section are very different due to the various stress on diverse cross sections.…”

Archives of Metallurgy and Materials

“…For explosive welding, the magnesium alloy should be annealed to a softened condition. For this reason it is necessary to determine the plastic working parameters for the obtained Ti/Al/Mg multilayered material from a multi-stage investigation process that will include the determination of the temperature, speed or the preset deformation [25,26].…”