Mechanical and Tribological Behavior of Mg-Matrix Composites Manufactured by Stir Casting

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Published: Jun 29, 2020
DOI: https://doi.org/10.4273/ijvss.12.1.03
Keywords:
Wear, Metal matrix composites, Tribological properties, Stir casting

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R. Praveenkumar
Dept. of Mech. Engg., St. Peter’s Institute of Higher Education and Research., Chennai
P. Periyasamy
Dept. of Mech. Engg., St. Peter’s Institute of Higher Education and Research., Chennai
V. Mohanavel
Dept of Mech. Engg., Kingston Engineering College., Vellore
M.M. Ravikumar
Dept of Mech. Engg., Kingston Engineering College., Vellore

Abstract

In the recent decades, magnesium matrix composites present a plenty of applications in automotive, marine and aerospace industries. In this work, AZ31B is selected as Mg matrix material and hard Tungsten carbide (WC) particles as reinforcement material. Mg/WC composites are reinforced with different weight proportions (0, 5, 10 and 15% wt.) using stir casting method. The worn surface of manufactured Mg/WC composites and base Mg material were examined by scanning electron microscope (SEM). The wear test results denote that AZ31B/15% wt. WC composites have excellent tribological behaviour when compared to the base magnesium matrix AZ31B alloy. The yield tensile strength, flexural strength, ultimate tensile strength and micro-hardness of the manufactured composites are improved by increasing the WC content. Further, SEM analysis revealed the homogeneous distribution of WC particles throughout the Mg matrix.

Article Details

Issue
Vol. 12 No. 1 (2020)
Section
Articles
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