Achieving outstanding strength-ductility matching in BCC light-weight high entropy alloys via high content ordered nanoprecipitates

B Dou, Y Pan, S Liu, B Wang, B Cheng, L Wang… - Materials Science and …, 2024‏ - Elsevier
The body-centered cubic (BCC) lightweight high entropy alloys (LHEAs) have attracted
much attention owing to their remarkable mechanical properties. Coherent ordered …

Mechanical properties of an Al10Nb20Ta15Ti30V5Zr20 A2/B2 refractory superalloy and its constituent phases

ON Senkov, B Crossman, SI Rao, JP Couzinie… - Acta Materialia, 2023‏ - Elsevier
Refractory superalloys (RSAs) are a new class of high-temperature structural materials
consisting of a nanometer-sized mixture of two coherent A2 (disordered BCC) and B2 …

[HTML][HTML] Unexpected spinodal decomposition in as-cast eutectic high entropy alloy Al30Co10Cr30Fe15Ni15

K Bai, CK Ng, M Lin, B Cheng, Y Zeng, D Wuu, JJ Lee… - Materials & Design, 2023‏ - Elsevier
By integrating calculation of phase diagram (CALPHAD) simulations, ab initio molecular
dynamics (AIMD) and experimental validation, we shed light on the unexpected spinodal …

Uniting superior mechanical properties with oxidation resistance in a refractory high-entropy alloy via Cr and Al alloying

D Cui, X Liu, Z Yang, B Guo, Z Wang, J Li, J Wang… - Scripta Materialia, 2024‏ - Elsevier
Refractory high-entropy alloys (RHEAs) have attracted considerable interest due to their
elevated melting points and remarkable softening resistance. Nevertheless, the ambient …

Temperature-dependent plastic deformation of a refractory Al7. 5 (NbTiZr) 92.5 medium-entropy alloy with a bcc+ B2 structure

N Yurchenko, E Panina, A Tojibaev, R Eleti… - Materialia, 2023‏ - Elsevier
Non-refractory elements, like Al, can enhance both room-temperature tensile strength and
ductility of refractory high/medium alloys (RH/MEAs) due to the formation of ordered …

High-temperature structural and mechanical stability of refractory high-entropy alloy Nb40Ti25Al15V10Ta5Hf3W2

J Pang, H Zhang, Y Ji, Z Zhu, L Zhang, H Li… - Materials …, 2023‏ - Elsevier
Refractory high-entropy alloys (RHEAs) with superior mechanical properties have been
considered as a potential next-generation candidate for high-temperature structural …

[HTML][HTML] First-principles thermodynamics of precipitation in aluminum-containing refractory alloys

YL Müller, AR Natarajan - Acta Materialia, 2024‏ - Elsevier
Materials for high-temperature environments are actively being investigated for deployment
in aerospace and nuclear applications. This study uses computational approaches to …

[HTML][HTML] Microstructural stability and mechanical properties of the as-cast and heat-treated newly developed TiNbCrTa refractory complex concentrated alloy

A Gupta, G Shankar, S Pawar, SH Choi… - Journal of Applied …, 2024‏ - pubs.aip.org
In this study, a TiNbCrTa refractory complex concentrated alloy (RCCA) was prepared using
vacuum arc remelting. The microstructural evolution and mechanical properties of both as …

On the Microstructure and Properties of Complex Concentrated bcc Solid Solution and Tetragonal D8m M5Si3 Silicide Phases in a Refractory Complex …

N Tankov, C Utton, P Tsakiropoulos - Alloys, 2024‏ - mdpi.com
In this work, the refractory complex concentrated alloy (RCCA) 3.5 Al–4Cr–6Ge–1Hf–5Mo–
36Nb–22Si–1.5 Sn–20Ti–1W (at.%) was studied in the as cast and heat treated conditions …

High-temperature compression behaviour and phase analysis of additively manufactured Ti45V45Al5Cr5 medium-entropy alloy

PK Arya, NK Jain, D Sathiaraj, A Kumar - Progress in Additive …, 2024‏ - Springer
This manuscript describes study of solidification behaviour, high-temperature compression
behaviour, phase evolution, and microstructure of novel lightweight Ti45V45Al5Cr5 medium …