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Research on wear resistance and friction coefficient of gas-thermal composite coatings with the addition of nano carbon components without lubricants

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Author
Date
2019
Publisher
БрГТУ
UDC
621.793
Citation
Research on wear resistance and friction coefficient of gas-thermal composite coatings with the addition of nano carbon components without lubricants / I. O. Sokorov [et al.] // Bulletin of the Brest State Technical University. Series: Engineering. – 2019. – No. 4. – P. 30–35: ill. – Bibliography: p. 35 (9 titles).
Abstract
В статье приведены научные исследования на износостойкость и коэффициент трения газотермических композиционных покрытий с добавкой наноуглеродных компонентов без смазочных включений. Установлено, что введение самофлюсующихся порошков с их последующим оплавлением снизило пористость покрытия в 2-3 раза, а коэффициент трения у композиции ПГ- 19М-01 с добавкой наноуглерода уменьшился до 50,8% по сравнению с этой же композицией без наноуглерода.
Annotation in another language
In this work, we have defined the wear resistance and coefficient of friction of gas-thermal coatings that made of improved Nano carbon components and develop a recommendation for the practical use of them. A significant value of coatings with a Nano scale structure is due to increased plasticity and the ability to reduce residual stresses, which allows increasing the coating thickness to the millimeter. The result of the analysis of hardening and restoration methods and used powder materials showed the prospects of applying powder materials based self-fluxing Nano carbon by adding these components to produce plasma and flame spray coating. Nanostructured coatings are characterized by ultra-high strength. Compared to not melted, the melting of coatings slightly reduced their fragility and the adhesion of the coating with the basement increased by about 3 to 4 times. The raised adhesive property is the reason for the small boundary between the coating and the basement. This fact enhances the wear resistance, too. It was determined that the friction coefficient of a composition with the addition of Nano carbon compared to the same composition without Nano carbon decreased to 508%.
URI
https://rep.bstu.by/handle/data/5014
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