Development of metal-ceramic-lubricant composite coatings obtained by Cold Spray for tribological applications in the automotive industry

G. Garcin, F. Delloro, M. Jeandin, J. F. Hochepied, C. Grente, E. Bidault, S. Boutet, M. Jousset, E. Bonay, G. Rivaud, A. Denoirjean, J. C. Abry, G. Bouvard, T. Malhomme, V. Fridrici

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

As many transportation industries, one of the main levers of automotive industry to reduce CO2 emissions is mass and friction reduction. One way of achieving these objectives is using efficient coatings tailored for high tribological performances, to be applied in some heavily loaded engine parts. The aim of the present work was to develop metal-ceramic-lubricant composite coatings onto steel parts, which could exhibit the best compromise between several properties, primarily wear and seizure resistance, fatigue resistance and thermal resistance. For this, metal-based coatings with addition of hard particles and solid lubricants were produced using cold spray. The relations between the resulting multi-material coating microstructure and its tribological properties were studied. To meet high tribological properties, the interfaces between the different components were optimized by selecting carefully feed-stock powders and by testing a large range of process parameters. Alumina-reinforced bronze-based composite coatings were produced using powders with different morphologies. Aggregated ceramic powders revealed to be more beneficial for wear properties compared to massive powders. Graphite was also added in order to reduce seizure.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition
Subtitle of host publicationVersatile Surface Engineering for Environmental Solutions, ITSC 2021 - Proceedings
EditorsFardad Azarmi, Xing Chen, J. Cizek, Cristian V. Cojocaru, Bertrand Jodoin, Y. Lau, Ruben Fernandez, O. Ozdemir, H. Salimi Jazi, F. Toma
PublisherASM International
Pages561-568
Number of pages8
ISBN (Electronic)9781713831303
Publication statusPublished - 1 Jan 2021
Externally publishedYes
Event2021 International Thermal Spray Conference and Exposition, ITSC 2021 - Virutal, Online
Duration: 24 May 202127 May 2021

Publication series

NameInternational Thermal Spray Conference and Exposition: Versatile Surface Engineering for Environmental Solutions, ITSC 2021 - Proceedings

Conference

Conference2021 International Thermal Spray Conference and Exposition, ITSC 2021
CityVirutal, Online
Period24/05/2127/05/21

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