Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system

Ikeuchi, Daiki; D.J.M., King; K.J., Laws; A.J., Knowles; R.D., Aughterson; G.R., Lumpkin; E.G., Obbard

Access status:

Open Access

Field	Value	Language
dc.contributor.author	Ikeuchi, Daiki
dc.contributor.author	D.J.M., King
dc.contributor.author	K.J., Laws
dc.contributor.author	A.J., Knowles
dc.contributor.author	R.D., Aughterson
dc.contributor.author	G.R., Lumpkin
dc.contributor.author	E.G., Obbard
dc.date.accessioned	2024-02-14T22:50:53Z
dc.date.available	2024-02-14T22:50:53Z
dc.date.issued	2019	en
dc.identifier.uri	https://hdl.handle.net/2123/32213
dc.description.abstract	Cr-Mo-V-W high-entropy alloy (HEA) is studied, with 2553 K equilibrium solidus and high Cr content to promote protective oxide scale formation, suggesting potential applications in hot, oxidising environments. Alloy Search and Predict (ASAP) and phase diagram calculations found a single phase, body-centred cubic (BCC) solid solution at elevated temperatures, across the range of compositions present within the system - uncommon for a HEA of refractory and transition metals. Density functional theory identified solubility of 22 at.% Cr at solidus temperature, with composition-dependent drive for segregation during cooling. An as-cast, BCC single-phase with the composition 31.3Cr-23.6Mo-26.4 V-18.7 W exhibiting dendritic microsegregation was verified.	en
dc.language.iso	en	en
dc.publisher	Elsevier	en
dc.rights	Copyright All Rights Reserved	en
dc.subject	Alloy Search and Predict (ASAP)	en
dc.subject	Refractory metals	en
dc.subject	CALPHAD	en
dc.subject	Density functional theory (DFT)	en
dc.subject	Microstructure	en
dc.title	Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system	en
dc.type	Preprint	en
dc.identifier.doi	10.1016/j.scriptamat.2018.08.045
usyd.faculty	SeS faculties schools::Faculty of Engineering::School of Aerospace Mechanical and Mechatronic Engineering	en
workflow.metadata.only	No	en