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Investigations on microstructure, mechanical, and tribological behaviour of AA 7075–x wt.% TiC composites for aerospace applications

Publication Type : Journal Article

Publisher : Archives of Civil and Mechanical Engineering

Source : Archives of Civil and Mechanical Engineering, Elsevier B.V., Volume 19, Number 2, p.428-438 (2019)

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Keywords : 7075 Al alloy, Aerospace applications, Aluminum alloys, Ceramic materials, Ceramic particle, Characterization, Coefficient of frictions, Friction, Hardness result, Intermetallic phasis, Mechanical properties, Metallic matrix composites, Metals, TiC particles, Titanium alloys, Titanium carbide, Tribological behaviour, Tribological properties, Tribology, Wear of materials, Wear resistance, X ray diffraction

Campus : Coimbatore

School : School of Engineering

Department : Mechanical

Year : 2019

Abstract : This research work was dedicated to prepare AA 7075/(0, 2.5, 5 and 7.5 wt.%) TiC metal matrix composites through stir casting route. The manufactured composites were effectively characterized using various techniques such as X-ray diffraction, and advanced electron microscopes. The mechanical properties by the flexural strength and hardness results had performed and investigated elaborately. Further, the tribological properties in terms of the wear resistance and the coefficient of friction was also done and demonstrated clearly. The dispersion of TiC ceramic particles and its embedding over the ductile Al 7075 matrix was successfully obtained which exhibited excellent mechanical and surface behaviour with the function of TiC particles when compared to monolithic Al 7075 alloy. These results were due to the particulate strengthening of hard TiC ceramic particle over the soft ductile phase. In addition, X-ray diffraction results ensured the manufacturing of Al 7075-x wt.% TiC metal matrix composites successfully and no other inter-metallic phases were observed. © 2018 Politechnika Wrocławska

Cite this Research Publication : K. R. Ramkumar, Sivasankaran, S., Al-Mufadi, F. A., Siddharth, S., and Raghu, R., “Investigations on microstructure, mechanical, and tribological behaviour of AA 7075–x wt.% TiC composites for aerospace applications”, Archives of Civil and Mechanical Engineering, vol. 19, pp. 428-438, 2019.

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