Wetting and interfacial behavior of Fe, Co, Ni on (Ti, Zr, Hf, Nb, Ta)C high entropy ceramics
D. Vedel,
M. Storozhenko,
P. Mazur,
V. Konoval,
M. Skoryk,
O. Grigoriev,
M. Heaton,
A. Zavdoveev
Affiliations
D. Vedel
Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03142, Kyiv, Ukraine; Corresponding author.
M. Storozhenko
Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03142, Kyiv, Ukraine; AC2T Research GmbH, Viktor-Kaplan Straße 2/C, 2700, Wiener Neustadt, Austria
P. Mazur
Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03142, Kyiv, Ukraine
V. Konoval
Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03142, Kyiv, Ukraine
M. Skoryk
G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, Academician Vernadsky av. 36, 03142, Kyiv, Ukraine
O. Grigoriev
Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03142, Kyiv, Ukraine
M. Heaton
GRI, Green Restoration Ireland, Castlecomer rd. Carlow, Ireland
A. Zavdoveev
Paton Electric Welding Institute of NAS of Ukraine, Ukraine
The wetting of (Ti, Zr, Hf, Nb, Ta)C) high entropy carbide ceramics by molten metals was studied using a sessile drop method in a vacuum environment. Fe, Co, and Ni demonstrate good wetting with the (Ti, Zr, Hf, Nb, Ta)C substrate forming a final contact angle of 20°, 30°, and 22°, respectively. A detailed characterization of solidified couples was performed by scanning electronic microscopy to study the microstructure of the drop and interaction region. Dissolution of the (Ti, Zr, Hf, Nb, Ta)C ceramics components into metal accompanied with metal penetration into the ceramic's substrate was found to occur during high-temperature tests. Formation of (Nb,Ta)C– ZrC-, HfC-based solid solutions and Me5(Ti,Zr,Hf) intermetallics takes place in the (Ti, Zr, Hf, Nb, Ta)C–Me systems due to dissolution-recrystallization phenomena.
