Measurement of Hardness and Wear Properties of Al Alloy with Addition of Ni

Abstract:

An investigation on the impact of aging on the hardness and wear properties of the Al-Mg-Si alloy with Ni addition was carried out. Al base alloy was melted in an electric furnace and 10wt%Ni was added to the melt. The melt was cast in a metal mould. The cast specimens were solutionized and aged at various temperatures. The microstructure was observed using an optical microscope. The hardness, wear rate and CoF were determined. The eutectic Si morphology was refined. An optimum aging temperature (165 °C) was found to exist for the Ni-modified alloy. The hardness increased (by 4.5%), wear rate decreased (by 96%) and CoF remained at a constant value for the Ni modified alloy compared to the base alloy. It is concluded that the Ni addition significantly improves the properties of the base alloy.

• Periodical: Applied Mechanics and Materials (Volumes 813-814)
• Pages: 190-194
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.813-814.190
• Online since: November 2015
• Authors: Raj A. Nidhin*, R. Sellamuthu
• Keywords: Aging, Aluminium Alloy, Nickel, Wear Rate

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