Solid state recycling of aluminium sheet scrap by means of spark plasma sintering
作者： Dimos Paraskevas , Kim Vanmeensel , Jef Vleugels , Wim Dewulf , Joost R. Duflou
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.639.493
关键词: Welding 、 Scrap 、 Metallurgy 、 Composite material 、 Alloy 、 Sheet metal 、 Light metal 、 Materials science 、 Oxide 、 Spark plasma sintering 、 Aluminium
摘要: Various solid state or ‘meltless’ recycling techniques have recently been developed for light metal scrap in form of chips. Main objective all approaches is to bypass the need remelting order reduce overall required energy, and avoid material losses that occur during this step. Within paper, use Spark Plasma Sintering (SPS) proposed as a novel recycling/welding technique sheet scrap. Aluminium 5182 alloy scrap, derived from metal, was successfully consolidated into fully dense billet via SPS. The pulsed electric current heating, temperatures well below melting point, combined with mechanical pressure, enchased densification process resulting void-less material. recycled SPS sample densified microstructural investigation has performed confirm effective oxide film breakage. results illustrate effectiveness aluminium consolidation, also providing additional means recycling. involved mechanisms contribute fracture consolidation are being discussed.Keywords: Aluminium, recycling, spark plasma sintering
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