MECHANICAL AND CORROSION PERFORMANCE OF ZA-27 BASED COMPOSITES REINFORCED WITH AUSTENITIC STAINLESS STEEL MACHINING CHIPS

Kenneth Kanayo Alaneme, Kayode James Olaleye, Eloho Anita Okotete

Research output: Contribution to journalArticlepeer-review

Abstract

The present investigation aimed at evaluating the mechanical and corrosion performance of stir-cast ZA-27 based composites reinforced with stainless steel machining chips (SSMC), which is presumed offer to improve ductility and toughness to the composite but it is unclear how it can affect the strength and the corrosion resistance. The results indicate that the ZA-27 composites produced were technically not defective, judging from the very low porosity levels observed in them. The hardness and ultimate tensile strength of the composites improved with increase in wt. % SSMC, and no significant difference in values noticed when compared to the ZA-27 based composite reinforced with alumina. The ductility and fracture toughness of the SSMC containing ZA-27 based composites increased with the increase in the reinforcement wt. % and were significantly better than the alumina reinforced composition. The corrosion resistance of the composites in H2SO4 solution also improved with increase in the wt. % of SSMC, and the resistance to corrosion for all the composites were higher than the unreinforced ZA-27 alloy.

Original languageEnglish
Pages (from-to)366-374
Number of pages9
JournalJournal of Chemical Technology and Metallurgy
Volume56
Issue number2
Publication statusPublished - 2021

Keywords

  • Zn27Al based alloy
  • corrosion behavior
  • mechanical properties
  • metal matrix composites
  • stainless steel chips

ASJC Scopus subject areas

  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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