COMPARISON STUDY OF DRY SAND ABRASIVE BEHAVIOUR ON AS-CAST AND HEAT TREATED ALUMINIUM LM13-HEMATITE PARTICULATE COMPOSITE

Sunil Kumar M, Meghani Molies Reddy, Batluri Thilak Chandra, Rajesh T R

Abstract: Aluminium LM13 is most popularly used in automotive application due to its good mechanical and tribological properties. The reinforcement hematite (hard ceramic material) is a rich iron ore mineral. In this present work is to study the wear performance of the contrived Aluminium LM13-Hematite particulate composite manufactured by liquid metallurgy technique. The Hematite particles having grain size 100-150 µm spread for the range of 3wt.%, 6wt.%, 9wt.% & 12wt.% in Steps of 3wt.% were fused in to Aluminium LM13 matrix. The Aluminium LM13-Hematite composite has been subjected to solutionazing temperature at ? ? 530° ? 2° ? for 2 hours followed by water quenching and ageing treatment for 6 hours at 175° ? ? ? 2° ?. Microstructural studies were carried out for both as-cast and heat treated specimen in order to verify the nature of the arrangement. The Sand abrasive wear tests have been conducted to influence on Reinforcement and consequences of load for both as-cast and heat treat specimen. The weight percentage of reinforcement increases abrasive wear rate (Weight loss in mg) decreases in heat treated sample compare to as-cast sample. The load is increased wear rate decreases for heat treated sampling compare to as-cast sample

Keywords: Aluminium LM 13, Hematite, Liquid Metallurgy Technique, Sand Abrasive Test Etc…

DOI: https://doi.org/10.15623/ijret.2016.0507072