Effect of Ultrasonic Stir Casting Technique on Mechanical and Tribological Properties of Aluminium–Multi-walled Carbon Nanotube Nanocomposites

This paper studies the enhancement of the mechanical and tribological properties of multi-walled carbon nanotubes (MWCNT)-reinforced aluminium nanocomposites prepared by ultra-sonication-assisted stir casting method. The investigations were made to assess the effect of MWCNT weight percentage on the...

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Bibliographic Details
Published in:Journal of bio- and tribo-corrosion 2020, Vol.6 (2), Article 30
Main Authors: Srinivas, V., Jayaraj, A., Venkataramana, V. S. N., Avinash, Turlapati, Dhanyakanth, P.
Format: Article
Language:English
Subjects:
Aluminum
Biomaterials
Casting machines
Chemistry and Materials Science
Coefficient of friction
Corrosion
Corrosion and Coatings
Electron probes
Materials Science
Mechanical properties
Multi wall carbon nanotubes
Nanocomposites
Nanotubes
Probes
Solid Mechanics
Sonication
Tribology
Ultrasonic scanners
Wear rate
Weight
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Summary:This paper studies the enhancement of the mechanical and tribological properties of multi-walled carbon nanotubes (MWCNT)-reinforced aluminium nanocomposites prepared by ultra-sonication-assisted stir casting method. The investigations were made to assess the effect of MWCNT weight percentage on the property enhancement of nanocomposites. MWCNTs in 1, 2 and 3% weight is added to LM 9 grade aluminium and processed in a stir casting machine with an ultrasonic probe. The ultra-sonication during casting resulted in a better dispersion of MWCNTs in the base materials. The results indicate a significant improvement in the hardness of the nanocomposite. The wear rate and coefficient of friction of Aluminium–MWCNTs composite have notably reduced during the test on a pin on disk tribometer compared to LM 9 aluminium base material. The percentage of MWCNTs is found to be a significant factor, and there is a progressive improvement in the properties with 3 wt% of MWCNTs–Aluminium composite giving the best performance.
ISSN:2198-4220
2198-4239
DOI:10.1007/s40735-020-0331-8