Influence of micro graphite particles on the microstructure and wear behaviour of aluminium 6061 alloy composites developed by two step casting process

Authors

DOI:

https://doi.org/10.18311/jmmf/2021/30103

Keywords:

Al6061 alloy, graphite particles, microstructure, wear, worn surface, wear debris

Abstract

In the present research, the effect of micron sized graphite addition on the microstructure and wear behaviour of Al6061 alloy has been studied. The Al6061 alloy metal matrix composites reinforced with 6, 9 and 12 varying wt.% of graphite particles were fabricated by novel two step stir cast route which helps in improving the wettability of Al6061 alloy matrix with graphite particles. The created composites were exposed to microstructural studies and wear properties evaluation. Microstructural characterizations of achieved samples were carried out by SEM microscopy, EDS and XRD patterns. The occurrence of graphite particles were confirmed by the XRD patterns. The wear behaviour of Al6061 alloy with 6, 9 and 12 weight percentages of graphite composites were evaluated using pin on disc wear apparatus. All the experiments were conducted by varying applied loads of 1, 3 and 5 kg at 400 rpm sliding speed and varying sliding speeds of 100, 200, 400 and 600 rpm at 5 kg constant load. Wear mechanisms were studied by using SEM micrographs of worn surfaces and wear debris.

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Published

2022-04-28

How to Cite

Nagaral, M., Auradi, V., Patil, S., V, B., & N, N. (2022). Influence of micro graphite particles on the microstructure and wear behaviour of aluminium 6061 alloy composites developed by two step casting process. Journal of Mines, Metals and Fuels, 69(12A), 199–206. https://doi.org/10.18311/jmmf/2021/30103