Deformation Characteristics at Elevated Temperature in Recycled 5083 Aluminum Alloy by Solid State Recycling

Abstract

Deformation mechanism of the recycled aluminum alloy by solid state recycling at elevated temperature was investigated. Elongation of the recycled specimen did not decrease when deformation mechanism was other than grain boundary sliding. Harmful effect of contaminations is negligible when deformation mechanism is related to dislocation activity in grains.

Influence of Heat Treatment on Microstrudture and Mechanical Properties of AZ31B Magnesium Alloy Prepared by Solid-State Recycling

“…Recrystallization occur in the process of annealing, dislocation density in extruded alloy decrease, which will cause that strength decrease and ductility is improved. In the recycled alloys, chips consolidate each other during hot extrusion, annealing treat can contribute to enhance the bonding of chips [16], which improves the tensile properties of the recycled materials. Moreover, the Solution, precipitation and distribution variation of second phase of Mg17Al12 in the process annealing have influence on mechanical properties of recycled alloy, but this effect is little in AZ31B magnesium alloy due to the small amount of Mg17Al12 phase.…”

Superplasticity of AA5083 alloy as processed by equal channel angular extrusion

“…It is seen that the ECAE process does not guarantee high superplastic elongation. On the other hand, a high ratio extrusion yielded over 400% elongation [9]. In this paper, a much thorough work of using ECAE on AA5083 aluminum alloy is performed.…”

Magnesium alloy and aluminium alloy fabricated by solid recycling process

“…Mamoru et al proposed that hot extrusion is an effective processing method for efficiently reclaiming the chips or scraps of magnesium alloy and aluminium alloy [6]. The advantage of the recycling process is that the treatment is conducted in the solid state, which does not need a special protective environment or extra caution [7,8]. Recycled magnesIUm alloy and aluminium alloy show excellent mechanical properties [8].…”

“…Machined chips such as AZ31 chips [8], ZK60 chips [7], AZ80 chips and AZ91 chips [6] were fabricated by solid-state recycling. Since hot extrusion could provide high compressive and shear forces in the recycling process, the oxide film in the surface was broken and original chips exhibited the bonding by fresh metal surface.…”