Високоентропійні AlCоNiFeCrTiVx покриття, отримані електронно-променевим наплавленням

The effect of V on the formation of the structure, phase composition, and microhardness of high-eltropy AlCoNiFeCrTiVx coatings obtained by electron-beam cladding on a steel substrate in vacuum is investigated. It has been established that AlCoNiFeCrTiV0 coatings consist of two bcc...

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Datum:2019
Hauptverfasser: Yurkova, А., Matveev, O., Chernyavsky, V., Sysoev, M.
Format: Artikel
Sprache:Ukrainisch
Veröffentlicht: Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine 2019
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Online Zugang:https://momjournal.org.ua/index.php/mom/article/view/2019-2-7
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Назва журналу:Metal Science and Treatment of Metals

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Metal Science and Treatment of Metals
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Zusammenfassung:The effect of V on the formation of the structure, phase composition, and microhardness of high-eltropy AlCoNiFeCrTiVx coatings obtained by electron-beam cladding on a steel substrate in vacuum is investigated. It has been established that AlCoNiFeCrTiV0 coatings consist of two bcc solid solutions with different lattice periods and a small amount of intermetallic s-phase. An increase in V content from x = 0 to x = 1.5 changes the phase composition of the coatings and they consist of one bcc solid solution and s-phases of different composition. With increasing content of V, the volume fraction of the s-phase increases. The addition of V to AlCоNiFeCrTi shows the strengthening effect of the AlCоNiFeCrTiV0-1.5 coatings and the Vickers hardness increased from 8,4 to 11 GPa.