Multi-component boron and niobium coating on M2 high speed steel processed by powder metallurgy

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Show simple item record Franco, Eliana Edil da Costa, Cesar Giubilei Milan, Julio Cesar Tsipas, Sophia Alexandra Gordo Odériz, Elena 2021-05-12T07:46:05Z 2020-02-25
dc.identifier.bibliographicCitation Franco, E., da Costa, C. E., Milan, J. C. G., Tsipas, S. A. & Gordo, E. (2020). Multi-component boron and niobium coating on M2 high speed steel processed by powder metallurgy. Surface and Coatings Technology, 384, 125306.
dc.identifier.issn 0257-8972
dc.description.abstract A multi-component boron and niobium coating can improve properties compared to conventional boron coating. A thicker layer of boron diffusion could be formed, providing a support layer of higher mechanical strength for the hard layer. The objective of this research is to develop a boron and niobium-based coating on the high-speed steel M2 produced by powder metallurgy (P/M). Firstly, calculations by ThermoCalc® were made to estimate parameters of niobium boronizing. Secondly, thermochemical treatments by pack cementation were carried out, in stages and also simultaneously. Microstructures, phases, hardness, roughness, wear resistance and coefficient of friction of the coatings were investigated. Finally, coatings composed of niobium carbides or niobium borides and iron borides, measuring more than 3000 HV0.025 of hardness was obtained by niobium‑boron based treatments. However, the best wear resistance was conferred in the boronizing coating.
dc.description.sponsorship The authors would like to acknowledge financial support to the Ph.D. student from FAPESC, under the studentship number 0951801-0-01, from CAPES for Sandwich Doctorate, BEX 9676/11-2. Also, they would like to thank the UC3M and UDESC universities, where this investigation was performed.
dc.format.extent 9
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2019 Elsevier B.V.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Diffusion layer
dc.subject.other Niobium boronizing
dc.subject.other Pack cementation
dc.subject.other Powder metallurgy
dc.subject.other Thermodynamic calculations
dc.subject.other Wear resistance
dc.title Multi-component boron and niobium coating on M2 high speed steel processed by powder metallurgy
dc.type article
dc.subject.eciencia Materiales
dc.rights.accessRights embargoedAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 125306
dc.identifier.publicationlastpage 9
dc.identifier.publicationtitle Surface and Coatings Technology
dc.identifier.publicationvolume 384
dc.identifier.uxxi AR/0000025562
carlosiii.embargo.liftdate 2022-02-25
carlosiii.embargo.terms 2022-02-25
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