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Undiluted Recycling of Aluminum Scrap Alloy Using Hume-Rothery’s Rule

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Abstract

A new concept of an undiluted recycling of aluminum alloy containing high-Fe impurity has been proposed and discussed herein. The primary objective of this concept is to avoid the conventional addition of virgin aluminum, to the aluminum scrap for lowering the concentration of Fe impurity. Results have shown that the Al5FeSi (β-phase) can be suppressed with minor alloying additions of some elements as per Hume-Rothery’s criteria for solid solubility. The proposed concept has been validated by Stirling’s approximation method.

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Acknowledgements

The corresponding author is also highly thankful to KBM Affilips BV (the Netherlands), for their sponsorship of inoculant master alloy, and Malaysian Aluminium Alloys Company (Malaysia), for sponsoring the recycled automotive recycled alloy used in the present work. Ministry of Higher Education (MOHE), Malaysia, and Universiti Malaysia Pahang are also highly acknowledged for funding the present work through the FRGS and UMP Research Grants (RDU140113 and RDU140363).

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  1. A. K. Prasada Rao

    Present address: School of Engineering and Technology, BML Munjal University, Gurgaon, India

Authors and Affiliations

  1. Faculty of Manufacturing Engineering, Universiti Malaysia Pahang, Pekan, Malaysia

    A. K. Prasada Rao, W. Q. Ain, M. K. Faisal & B. I. Mazni

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  1. A. K. Prasada Rao
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  2. W. Q. Ain
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Correspondence to A. K. Prasada Rao.

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Prasada Rao, A.K., Ain, W.Q., Faisal, M.K. et al. Undiluted Recycling of Aluminum Scrap Alloy Using Hume-Rothery’s Rule. Metallogr. Microstruct. Anal. 7, 239–244 (2018). https://doi.org/10.1007/s13632-018-0431-8

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