High-Stress Abrasive Wear Response of Zinc-Based Alloy: A Comparison with Grey Cast Iron
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
The objective of the present study is to assess the high-stress abrasive response of zinc-based alloy and to compare their properties with a conventionally used grey cast iron. The zinc-based alloy has been synthesized by liquid metallurgy route while cast iron is procured from a commercial source. High-stress abrasive wear examination has been conducted on using a pin-ondisc wear tester as per ASTM G132-96 standard. The influence of abrading distance and applied load on the wear behaviour of the test materials have been studied. The zinc-based alloy exhibits dendritic structure comprising of dendrites surrounded by + eutectoid and metastable ε phase in interdendritic regions. The + is a solid solution of zinc and aluminum in aluminum and zinc respectively are soft and ductile while ε phase is quite harder and transmits wear resistance to a slight range. In the case of cast iron, flakes of graphite were observed in the matrix; the latter comprised of (majority of) pearlite and (limited quantity of) ferrite. Wear rate and temperature rise increases with the increase in sliding distance and applied load. Moreover, cast iron exhibits less wear rate under all the test conditions while temperature rise was more in the case of the zinc-based alloy at lower load whereas at higher load opposite trend of variation was obtained.
Authors and Affiliations
Mohammad Mohsin Khan, Gajendra Dixit
Keywords
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