Recycling of AlSi8Cu3 alloy chips via high pressure torsion

Faculty Science Year: 2013
Type of Publication: Article Pages: 121-128
Authors:
Abd El Aal, Mohamed Ibrahim, Kim, Hyoung Seop, Yoon, Eun Yoo
DOI: 10.1016/j.msea.2012.09.045
Journal: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING ELSEVIER SCIENCE SA Volume: 560
Research Area: Science \& Technology - Other Topics; Materials Science; Metallurgy \& Metallurgical Engineering ISSN ISI:000313155400014
Keywords : Severe plastic deformation, High pressure torsion, Chip recycling, Al-Si alloy, Densification, Grain refinement    
Abstract:
In this paper, AlSi8Cu3 alloy chips were consolidated via HPT at an applied pressure 8 GPa for 10 revolutions at room temperature. The microstructure and hardness of the HPT consolidated chips were investigated and compared with those of the HPT processed solid AlSi8Cu3 alloy samples and cold compacted chip samples. The HPT process successfully resulted in fully densified bulk samples with a higher microhardness due to the finer Al matrix grains and Si particles sizes with more grain boundaries with high angles and more homogeneous deformation than those in the HPT processed solid AlSi8Cu3 alloy samples due to the higher imposed total strain. (C) 2012 Elsevier B.V. All rights reserved.
    
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