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- Title
Microstructural, Mechanical and Tribological Analysis of TiB<sub>2</sub> Ceramic-Reinforced Al6061 Aluminium Alloy Composites.
- Authors
Hanish Anand, S.; Venkateswaran, N.; Sathishkumar, B.; Rajeshkumar, L.
- Abstract
Aluminium alloy composites find most of their applications in various engineering fields owing to their higher specific strength, tailorable wear and corrosion resistance and elevated temperature resistance. Current work is an attempt to determine the mechanical and tribological behaviour of aluminium alloy 6061 (A16061) and in situ titanium diboride (TiB2) composites manufactured by conventional stir casting by varying the reaction temperature and time. A16061–TiB2 composites with 3, 6 and 9% by weight of reinforcements were fabricated and tempered in different media. Those composites were initially analyzed for their ultimate strength and hardness to identify the best composition. Results portrayed that the hardness of composites increased with the content of TiB2 and composites with 9% reinforcements were identified to be better. Composite specimen with higher strength was then subjected to tribological test, and the optimal combination of process parameters, obtained by design of experiments, influencing the tribological behaviour was identified by Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). Results of analysis of variance indicated that TiB2 particles significantly influenced the tribological behaviour of Al6061–TiB2 composites along with the variation in load, sliding velocity and sliding distance. The optimal composite sample was again fabricated with Ni–P-coated TiB2 using electroless process and was subjected to hardness measurement. It was found that Ni–P-coated TiB2 composites further enhanced the hardness of the A16061–TiB2 composites.
- Subjects
ALUMINUM composites; ALUMINUM alloys; METALLIC composites; TITANIUM diboride; TITANIUM alloys; ULTIMATE strength; TOPSIS method; HIGH temperatures
- Publication
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ), 2024, Vol 49, Issue 2, p1827
- ISSN
2193-567X
- Publication type
Article
- DOI
10.1007/s13369-023-07978-4