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Superplasticity and Cavitation of Recycled AZ31 Magnesium Alloy Fabricated by Solid Recycling Process

“…4,5) Recently, we proposed the "solid recycling process" as a new method of recycling metals. [8][9][10] In the solid recycling process, metal scraps are recycled by consolidation using plastic deformation processes such as hot extrusion and forging. It should be noted that remelting is not required in the solid recycling process.…”

“…However, it has been reported that grain refinement is attained by hot deformation due to dynamic recrystallization in magnesium alloys [8][9][10][11][12][13][14][15] and that grain refinement leads to superplasticity and excellent post-deformation mechanical properties. [8][9][10][11][12][13][14][15] Superplastic forming is expected to be applied to the actual process- * Graduate Student, Himeji Institute of Technology, Present address: SUNCALL Co., Kyoto 615-0917, Japan.…”

Consolidation behavior of Mg–10Gd–2Y–0.5Zr chips during solid-state recycling

“…The Mg alloys recycled by this means showed relatively higher strength due to the grain refinement and uniform dispersion of oxide contaminant compared with those extruded specimens from the original ingot [10][11][12][13][14][15]. Besides, with the development of hydrostatic technology, the solid-state recycling is also popular because the huge specimens can be directly extruded at high temperature and the size of the recycled specimens is increased.…”

“…In previous studies, on the mechanical properties of the AZ31, AZ91, AZ80 and ZK60 magnesium alloys produced by solid-state recycling have been investigated [11][12][13][14][15]. Up to now, enhanced compaction of chips during solid-state recycling has not been studied.…”

Microstructure and mechanical properties of Mg–10Gd–2Y–0.5Zr alloy recycled by cyclic extrusion compression

“…Some works on the properties of the AZ31 [3][4][5], AZ91 [6,7], AZ80 [8] and ZK60 [9] magnesium alloys produced by solid-state recycling were investigated, and the following common results were obtained, which were that magnesium alloys recycled by this means showed relatively higher strength due to the grain refinement and uniform dispersion of oxide contaminant, but elongation decreased compared with those extruded specimens from the original ingots. Nevertheless, it is difficult to improve both the strength and ductility of the recycled alloys by conventional extrusion means.…”