Recycling of Aluminum Scrap by Severe Plastic Deformation

Ji Rang Cui; Wei Guo; Hans Jørgen Roven; Qu Dong Wang; Yong Jun Chen; Tao Peng

doi:10.4028/www.scientific.net/MSF.667-669.1177

Paper Titles

Microstructural Features and Mechanical Properties after Industrial Scale ECAP of an Al 6060 Alloy
p.1153

Development of SPD Technologies and Establishment of a Production Line for Rod-Shaped Semiproducts out of Nanostructured Titanium for Medical Application
p.1159

Evolution of Microstructure and Mechanical Properties of Titanium Grade 4 with the Increase of the ECAP-Conform Passes
p.1165

Interface Microstructure of Diffusion Bonded Fe₃Al/Al with Ultrafine Grain Layer
p.1171

Recycling of Aluminum Scrap by Severe Plastic Deformation
p.1177

The Aspects of Practical Application of Ultrafine-Grained Titanium Alloys Produced by Severe Plastic Deformation
p.1183

Development of Textured Coated Superconductor Substrate Tapes by Severe Plastic Deformation Processing
p.1189

Microstructure Evolution and the Influence of Hydrofluoric Acid Treatment on the Surfaces of Commercial Pure Ti after ECAE
p.1195

Towards Perspective Applications of Nanostructured Ti in Medicine
p.1201

HomeMaterials Science ForumMaterials Science Forum Vols. 667-669Recycling of Aluminum Scrap by Severe Plastic...

Recycling of Aluminum Scrap by Severe Plastic Deformation

Abstract:

The production of primary aluminum is an energy costly process. With the global warming being of concern, the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive due to its economic and environmental benefits. Recycling of aluminum by new solid state recycling techniques instead of conventional remelting and subsequent refining processing can result in significant energy savings. Severe Plastic Deformation (SPD) techniques have been applied for consolidating nano particles into fully dense materials with good mechanical properties. However, solid state recycling of scraps by SPD is only in the beginning. In the present study, degreasing of aluminum chips from the machine workshop was investigated by a thermal method and chemical treatment. Thereafter, the decoated chips were recycled by Cyclic Extrusion Compression (CEC) at deformation temperatures between 400 and 500 °C. The microstructure and mechanical properties of the recycled aluminum scrap processed by SPD were subsequently investigated. The results show that SPD technology provides a promising alternative for recycling of aluminum scrap. Thermal degreasing of aluminum scrap resulted in more oxidization of aluminum scrap particles. Visible interfaces between chips were observed even at a low magnification.

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Periodical:

Materials Science Forum (Volumes 667-669)

Pages:

1177-1182

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.667-669.1177

Citation:

Cite this paper

Online since:

December 2010

Authors:

Ji Rang Cui, Wei Guo, Hans Jørgen Roven, Qu Dong Wang, Yong Jun Chen, Tao Peng

Keywords:

Aluminum Scrap, Cyclic Extrusion Compression (CEC), Decoating, Solid State Recycling

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