Influence of Millet Husk Ash and Heat Treatment on Corrosion Rate of Al-4.5%Cu Matrix Composite in Acid Environment

Authors

  • I. Aliyu  Metallurgical Engineering Department, Waziri Umaru Federal Polytechnic, Birnin Kebbi
  • T. Shehu  
  • Mustapha A. M.   

Keywords:

Millet husk ash (MHA), Aged hardened, Corrosion rate, Al-4.5%Cu/MHA

Abstract

The influence of millet husk ash and heat treatment on corrosion rate of Al-4.5%Cu/MHA in acid environment was investigated. The composites were produced by double stir casting with MHA at 0, 1, 2, 3, 4 and 5wt% in Al-4.5%Cu alloy a matrix. As-cast samples and the heat treated once at 400oC consisting four (4) sets of samples in each of these compositions were immersed in 1M HCl solution for a period of 1 to 4 days. Corrosion rate measurement was utilized in evaluating the corrosion behaviour of the composites. The results show that the corrosion rate of unreinforced Al-4.5%Cu was relatively lower than that of the reinforced Al-4.5%Cu. Similarly, corrosion resistance of aged hardened composites were superior to that of the as-cast composites in 1M HCl solution, and the corrosion rate increased with increase wt% MHA. The increase in the matrix/reinforcement interface with increase in wt% MHA in the composites was identified as the likely reason for the increase in corrosion rates observed with increase in wt%MHA.

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IInternational Journal of Scientific Research in Mechanical and Materials Engineering

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Published

2020-12-30

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Volume 4, Issue 6, November-December-2020

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Research Articles

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How to Cite

[1]
I. Aliyu, T. Shehu, Mustapha A. M. , " Influence of Millet Husk Ash and Heat Treatment on Corrosion Rate of Al-4.5%Cu Matrix Composite in Acid Environment, IInternational Journal of Scientific Research in Mechanical and Materials Engineering(IJSRMME), ISSN : 2456-3307, Volume 4, Issue 6, pp.21-27, November-December-2020.