Tribological Properties of Al-Based Composites Reinforced with Fullerene Soot.

Firuz Yunusov,Tatiana V Larionova,Oleg Tolochko,Alexander D Breki

doi:10.3390/ma14216438

Firuz Yunusov, Tatiana V Larionova + Show 2 more

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https://doi.org/10.3390/ma14216438

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Abstract

Aluminum-based composite materials reinforced with fullerene soot, which is a mixture of fullerene and amorphous carbon, are promising materials for friction and wear applications. Composite materials: aluminum with 2% fullerene soot (f.s) and Al with 2% f.s and 2% Cu were obtained via mechanical milling followed by hot pressing. The tribological properties (friction and wear) of the listed composites were investigated and compared with the results for pure aluminum obtained under similar conditions. It has been shown that the addition of fullerene soot reduces the friction coefficient by 25%. At additional alloying with copper, the friction coefficient decreased by 35% in comparison with pure aluminum and also lad to a decrease in friction fluctuations. The wear rate of composite Al with 2% f.s decreased twice in comparison with that of pure aluminum, and with additional alloying it decreased 2.5 times. The morphology of the wear surfaces was investigated by scanning electron microscopy (SEM). The influence of fullerene soot and additional alloying on the wear mechanism was shown.

Highlights

Friction and wear have a huge impact on the energy used by and resource conservation of production
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Summary

Introduction

Friction and wear have a huge impact on the energy used by and resource conservation of production. Through the use of specially developed surface treatment, materials, and lubricant technologies to reduce friction and wear, energy losses can be reduced in the long term by up to 40% [2]. One of the ways to reduce friction and wear is the development of new composite materials with good tribological properties.

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