Effect of Iron-intermetallics on the Fluidity of Recycled Aluminium Silicon Cast Alloys

Authors

  • D. N. Wang’ombe Mombasa Polytechnic University College
  • S. E. Maube
  • S. M. Maranga JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
  • J. M. Kihiu JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY

Keywords:

Aluminum-silicon alloys, Fluidity, Iron-intermetallics, Manganese, Neutralization

Abstract

The effect of Fe content on the fluidity of recycled aluminium silicon cast alloy has been investigated in both un-modified and Mn-neutralized states by spiral fluidity test. Increasing Fe decreases the fluidity due to the formation of -Al5FeSi and -Al15(Fe, Mn)3Si2-intermetallic compounds in un-modified and Mn-neutralized states respectively. At a constant Fe level Mn-neutralization increased fluidity. Manganese neutralization was found to be an effective way of improving the fluidity of recycled aluminium-silicon alloys at a constant concentration of Fe.

Author Biographies

D. N. Wang’ombe, Mombasa Polytechnic University College

Department of Mechanical and Automotive Engineering, MPUC.

S. E. Maube

Department of Mechanical Engineering, Jomo Kenyatta University of Agriculture and Technology

S. M. Maranga, JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY

Department of Mechanical Engineering, JKUAT.

J. M. Kihiu, JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY

Department of Mechanical Engineering, JKUAT.

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Published

19-06-2022

Issue

Proceedings of the 2012 Sustainable Research & Innovation (SRI) Conference

Section

Articles

License

Copyright (c) 2022 D. N. Wang’ombe, S. E. Maube, S. M. Maranga, J. M. Kihiu

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.