The origin and the effect of the fcc phase in sintered HfNbTaTiZr

• Published in: Materials letters Vol. 286; p. 129224
• Main Authors: Lukáč, František, Vilémová, Monika, Klementová, Mariana, Minárik, Peter, Chráska, Tomáš
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.03.2021; Elsevier BV
• Subjects: Alloy powders; Argon; Heat treating; HfNbTaTiZr; High entropy alloys; Materials science; Mechanical alloying; Mechanical properties; Microstructure; Oxygen compounds; Phase composition; Phase transformation; Plasma sintering; Powder metallurgy; Powder technology; Refractory high-entropy alloys; Spark plasma sintering; Refractory high-entropy alloys; Phase transformation; Powder technology; HfNbTaTiZr

[Display omitted] •HfNbTaTiZr is sensitive to its environment at HT due to high affinity of Hf, Zr and Ti to O and N.•New fcc phase is prepared in ultrafine-grained HfNbTaTiZr by SPS and MA.•Both ZrHfTi-rich hcp and fcc phases are formed during sintering from the powder milled with air.•Only the fcc...