Title: The preparation and mechanical properties of Al metal matrix composites by in-situ method

Authors: P. Mohan; N. Azhagesan; M. Sivapragash

Addresses: Department of Mechanical Engineering, PSN Institute of Technology and Science, Tirunelveli, Tamil Nadu, India ' Department of Mechanical Engineering, Cape Institute of Technology, Levengipuram, Tirunelveli, Tamil Nadu, India ' Department of Mechanical Engineering, Noorul Islam University, Kumaracoil, Kanyakumari, Tamil Nadu, India

Abstract: The aluminium-based composites are widely being used in the transport, aerospace, marine, automobile and mineral processing industries. Preparation of Al/TiB2 composites by in-situ processing offers significant advantages over the conventional processing from both technical and economic standpoints. The technique of salt-metal reactions is an attractive in-situ approach for preparing Al-TiB2 metal matrix composites. It involves in mixing of Ti and B bearing salts (i.e., K2TiF6 and KBF4) to molten aluminium, giving rise to the formation of dispersion of TiB2 particles in the aluminium matrix. The obtained as-cast metal matrix composite is carefully machined to prepare the test specimens for hardness, tensile as well as microstructure studies as per ASTM standards. The hardness, tensile strength and microstructure properties of Al6061-TiB2 composites are explored experimentally. Finally, the material characterisation of heat treated sample and as-cast samples are compared.

Keywords: Al6061-TiB2 metal matrix composites; hardness; tensile; micro structure.

DOI: 10.1504/IJCAET.2018.088826

International Journal of Computer Aided Engineering and Technology, 2018 Vol.10 No.1/2, pp.35 - 41

Received: 07 Sep 2015
Accepted: 21 Dec 2015

Published online: 12 Dec 2017 *

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