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Arjun Haridas , M. Ravikumar , V. C. Uvaraja

Abstract

The metal matrix composites which are used in industrial application face many problems or difficulties such as design, cost, recycling, etc. By developing a new phase composite material it is possible to overcome some of the difficulties by improving its tribological as well as mechanical properties. This paper presents a review of the production methodology of Aluminium metal matrix composite by stir casting process. Certain test methods such as XRD (X-ray diffraction), Optical microscopy are used to examine the mixture of matrix and reinforcement in the component made and also tribological and mechanical characteristics are measured using pin-on-disc and rockwell hardness test respectively. The experiment results show that the proposed phase offers a good performance as reinforcement and it can be considered as ideal solution for general problems.

Keywords

Metal Matrix Composite, Optical Microscopy, Rockwell Hardness, Stir Casting, Tribology, XRD

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G. Shaik Usmansha , V. C. Uvaraja

Abstract

The Aluminium 6061 alloys are mainly used in the application of automobile and aeronautical applications. An attempt has been made to increase the mechanical and tribological property of Al6061 alloy by adding SiC and Ti particulates as reinforcements. The ratio of particulates based on weight percentage such as (2.5%, 5%, 7.5%, and 10%) both SiC and Ti. The composite is developed by stir casting method. The particle size of SiC and Ti between 16 to 22μm. The optical microscopic test is conducted to examine the distribution of reinforcement particulates. Rockwell hardness test and XRD test also included calculating the hardness and constituents present in the composite samples. Friction and wear test is done by pin-on-disc method and the microscopic examination done by scanning electron microscope (SEM).The investigation results that Al6061 hybrid composite with good tribological properties and used in automobile components for reliable, long life and high performance.

Keywords

Hybridcomposite, Particulate Reinforcement, SEM, Wear, Stir-cast

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