Tribological And Corrosion Resistance of Food Grinding Discs: Effects of Ferrochromium

Authors

  • J. A. Adebisi Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • I. I. Ahmed Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • J. K. Odusote Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria
  • A. A. Oyebola Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • A. A. Raji Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • O. L. Jolayemi Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • P. Samuel Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • D. G. Olorunpomi Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • A. A. Owoade 1Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • O. F. Oyekoya Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • P. A. Ilesanmi Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • A. O. Odewole Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • M. Dasuki Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria.
  • S. Abdulkareem Department of Mechanical Engineering, University of Ilorin, Ilorin, Nigeria.

DOI:

https://doi.org/10.63746/njtd.v22i5.3272

Keywords:

Grinding, Disc, Ferrichromium, Cast iron, Wear, Corrosion

Abstract

The pervasive use of cast-iron grinding discs in domestic food preparation poses a dual challenge of material degradation and food safety risks due to tribo-corrosive wear. This study presents the effects of ferrochromium tribological and corrosion resistance of food grinding discs. The study examined a sustainable solution by engineering high-performance, chromium-alloyed grinding discs from upcycled Toyota Engine Block (TEB) scrap. The influences of varying Fe-Cr additions on the microstructure, mechanical properties, and corrosion resistance of the resultant cast irons, which were normalized at 650°C and 850°C were systematically investigated. A comprehensive suite of characterization techniques, including hardness, tensile, wear, and impact testing, supplemented by SEM-EDS, XRF, and XRD analysis, reveals that chromium addition facilitates the formation of protective carbides and a stable passive layer. The results demonstrated a significant enhancement in performance: hardness and yield strength increase substantially, leading to a marked reduction in wear rate and a profound inhibition of corrosion susceptibility, as quantified by gasometric and potentiodynamic polarization methods. This work establishes a robust pathway for transforming industrial waste into superior, food-safe components, with direct implications for enhancing product longevity, reducing environmental footprint, and mitigating contamination risks in consumer appliances.

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Published

2025-12-31

Issue

Vol. 22 No. 5 (2025): Volume 22, Issue 5, December 2025.

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