Techniques for Recycling of Magnesium Scrap

Hanko, Gerhard; Lochbichler, Claus; Riederer, W.; Macher, G.

doi:10.1002/3527603565.ch153

Cited by 4 publications

(2 citation statements)

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“…About 90% of Al in cars is in the form of castings [5], and of it between 65% and 95% is recycled old scrap [5,23], effectively reducing the (volume) α FA -values of Table 3 to negligible figures. Conversely, due to the much more stringent chemical composition specifications, particularly regarding Cu and Ni contents, only between 20 and 30% of recycled Mg is from old scrap [22,24], hence the reduction in α-values for Mg castings due to recycling is much less. This gives a distinct edge to Al casting alloys applications when it comes to CO 2 -creation.…”

Section: Aluminium Alloys 2006 -Icaa10mentioning

confidence: 99%

Light Alloy Castings for Automotive Applications: The Case of Al vs. Mg

Cáceres

2006

MSF

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The economical and environmental effects of mass reduction through Al and Mg primary alloys substitutions for cast iron and steel in automotive components are discussed using M.F. Ashby’s penalty functions method. The viability of Mg alloy substitutions for existing Al alloy cast components is also considered. The cost analysis shows that direct, equal-volume, Al alloy substitutions for cast iron and steel are the most feasible in terms of the CAFE liability, followed by substitutions involving flat panels of prescribed stiffness. When the creation of CO2 associated to the production of Al and Mg is considered, the potential gasoline savings over the lifespan of the car compensate for the intrinsic environmental burden of Al in all applications, while electrolytic Mg substitutions for cast iron and steel are feasible for equal volume and panels only. Magnesium produced by the Pidgeon thermal process appears to be too primary energy intensive to be competitive in structural applications. Magnesium substitutions for existing Al alloy beams and panels are generally unviable. The current higher recycling efficiency of Al casting alloys confers Al a significant advantage over Mg alloys.

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Section: Aluminium Alloys 2006 -Icaa10mentioning

confidence: 99%

Light Alloy Castings for Automotive Applications: The Case of Al vs. Mg

Cáceres

2006

MSF

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“…Clean in this regard means free from impurities, contaminations and sorted according to a chemical composition or a single alloy [4][5][6][7][8][9][10][11][12][13][14] . The latter is also called class 1 scrap and mainly consists of sprues and runners from magnesium die casters [14,15] .…”

Section: Introductionmentioning

confidence: 99%

Recycling of magnesium drive train components

Fechner¹,

Blawert²,

Hort³

et al. 2009

Sci. China Ser. E-Technol. Sci.

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With the development of new heat resistant magnesium alloys, the automotive industry has introduced several parts to the drive train. The rising number of large magnesium components will result in a higher quantity of automotive post consumer scrap. It was the aim of this work to find a reasonable alloy system for the recycling of these magnesium drive train components. A matrix of potential recycling alloys based on the magnesium alloy AM50 was prepared via permanent mould casting. The materials were investigated via tensile testing, creep tests and salt spray tests. Three alloys were selected for processing via high pressure die casting and the tests were repeated on the new materials. A promising system for recycling has been isolated and will be investigated more deeply for the influence of impurities. magnesium recycling, end-of-life vehicles, recycling alloy, post consumer scrap

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