Effect of heat treatment on tribological behavior of zinc aluminum alloy reinforced with graphite and SIC particles for journal bearing

Abstract

Purpose

The purpose of the paper is to study the dry sliding wear behavior of as-cast and heat-treated zinc-aluminum (ZA-27) alloy, reinforced with silicon carbide and graphite particles.

Design/methodology/approach

The alloy and composite samples were prepared with stir casting technique. Heat treatment was carried out for samples at a temperature of 370°C followed by quenching in water at room temperature. Subsequently, the heat-treated samples were aged at 180°C and quenched in water at room temperature. The wear tests were carried using pin-on-disc apparatus at room temperature at different applied loads, sliding speed and sliding distance.

Findings

The wear volume loss of as-cast samples was more compared with heat treated samples. Composites exhibited improved wear resistance than base alloy.

Originality/value

Hybrid metal matrix composites with heat treatment has exhibited superior wear behavior in dry sliding conditions.

Citation

Kiran, T., Prasannakumar, M., Basavarajappa, S. and Viswanatha, B. (2015), "Effect of heat treatment on tribological behavior of zinc aluminum alloy reinforced with graphite and SIC particles for journal bearing", Industrial Lubrication and Tribology, Vol. 67 No. 4, pp. 292-300. https://doi.org/10.1108/ILT-08-2013-0090