Microstructural evolution and mechanical behavior of novel Ti1. 6ZrNbAlx lightweight refractory high-entropy alloys containing BCC/B2 phases

H Wang, W Chen, C Chu, Z Fu, Z Jiang, X Yang… - Materials Science and …, 2023 - Elsevier
To demonstrate the concept of lightweight refractory high-entropy alloys (LRHEAs) with
remarkable strength and ductility at room-and high-temperatures, we designed and …

Strengthening of high-entropy alloys via modulation of cryo-pre-straining-induced defects

D Wei, W Gong, L Wang, B Tang, T Kawasaki… - Journal of Materials …, 2022 - Elsevier
Owing to their attractive structure and mechanical properties, high-entropy alloys (HEAs)
and medium-entropy alloys (MEAs) have attracted considerable research interest. The …

[HTML][HTML] Microstructure and properties of Al0. 5NbTi3VxZr2 refractory high entropy alloys combined with high strength and ductility

T Wang, W Jiang, X Wang, B Jiang, C Rong… - Journal of Materials …, 2023 - Elsevier
Abstract Novel lightweight Al 0.5 NbTi 3 V x Zr 2 (x= 0.5, 1.0, 1.5) refractory high entropy
alloys were synthesized by vacuum arc melting. The microstructure evolution and …

Overcoming the strength-ductility trade-off via the formation of nanoscale Cr-rich precipitates in an ultrafine-grained FCC CrFeNi medium entropy alloy matrix

D Liang, C Zhao, W Zhu, P Wei, F Jiang… - Materials Science and …, 2019 - Elsevier
FCC high-and medium-entropy alloys (HEAs and MEAs) have demonstrated high ductility
and fracture toughness, but suffer from low strength. To overcome such strength-ductility …

Manipulating the ordered oxygen complexes to achieve high strength and ductility in medium-entropy alloys

M Jiao, Z Lei, Y Wu, J Du, XY Zhou, W Li… - Nature …, 2023 - nature.com
Oxygen solute strengthening is an effective strategy to harden alloys, yet, it often
deteriorates the ductility. Ordered oxygen complexes (OOCs), a state between random …

Alloy design for intrinsically ductile refractory high-entropy alloys

S Sheikh, S Shafeie, Q Hu, J Ahlström… - Journal of applied …, 2016 - pubs.aip.org
Refractory high-entropy alloys (RHEAs), comprising group IV (Ti, Zr, Hf), V (V, Nb, Ta), and
VI (Cr, Mo, W) refractory elements, can be potentially new generation high-temperature …

Heterogeneous precipitation mediated heterogeneous nanostructure enhances strength-ductility synergy in severely cryo-rolled and annealed CoCrFeNi2.1Nb0.2 …

U Sunkari, SR Reddy, BDS Rathod, SSS Kumar… - Scientific Reports, 2020 - nature.com
Possibilities of enhancing mechanical properties of brittle intermetallic containing high
entropy alloys (HEAs) using novel processing and microstructural design strategies were …

CALPHAD-aided design for superior thermal stability and mechanical behavior in a TiZrHfNb refractory high-entropy alloy

T Li, S Wang, W Fan, Y Lu, T Wang, T Li, PK Liaw - Acta Materialia, 2023 - Elsevier
TiZrHfNbTa refractory high-entropy alloys (RHEAs) are now at the research frontier of
advanced metallic materials due to their exceptional mechanical performance, particularly at …

A facile strengthening method by co-doping boron and nitrogen in CoCrFeMnNi high-entropy alloy

S Son, J Lee, P Asghari-Rad, GH Gu, F Haftlang… - Materials Science and …, 2022 - Elsevier
This work aims to investigate the multiple strengthening mechanisms in the B–N co-doped
CoCrFeMnNi high-entropy alloy. B–N co-doping induces the fine grain size and leads to Cr …

A precipitation-hardened high-entropy alloy with outstanding tensile properties

JY He, H Wang, HL Huang, XD Xu, MW Chen, Y Wu… - Acta Materialia, 2016 - Elsevier
Recent studies indicated that high-entropy alloys (HEAs) possess unusual structural and
thermal features, which could greatly affect dislocation motion and contribute to the …