[HTML][HTML] Multistage work hardening assisted by multi-type twinning in ultrafine-grained heterostructural eutectic high-entropy alloys

P Shi, Y Zhong, Y Li, W Ren, T Zheng, Z Shen, B Yang… - Materials Today, 2020 - Elsevier
High strength of materials usually comes with low ductility due to the lost or short-lived strain
hardening. Here, we uncover a sequentially-activated multistage strain hardening (SMSH) …

Phase-selective recrystallization makes eutectic high-entropy alloys ultra-ductile

Q Wu, F He, J Li, HS Kim, Z Wang, J Wang - Nature communications, 2022 - nature.com
Excellent ductility is crucial not only for shaping but also for strengthening metals and alloys.
The ever most widely used eutectic alloys are suffering from the limited ductility and losing …

Enhanced strength–ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae

P Shi, W Ren, T Zheng, Z Ren, X Hou, J Peng… - Nature …, 2019 - nature.com
Realizing improved strength–ductility synergy in eutectic alloys acting as in situ composite
materials remains a challenge in conventional eutectic systems, which is why eutectic high …

Hierarchical microstructure design to tune the mechanical behavior of an interstitial TRIP-TWIP high-entropy alloy

J Su, D Raabe, Z Li - Acta Materialia, 2019 - Elsevier
We demonstrate a novel approach of utilizing a hierarchical microstructure design to
improve the mechanical properties of an interstitial carbon doped high-entropy alloy (HEA) …

Strain partitioning enables excellent tensile ductility in precipitated heterogeneous high-entropy alloys with gigapascal yield strength

F He, Z Yang, S Liu, D Chen, W Lin, T Yang… - International Journal of …, 2021 - Elsevier
High entropy alloys (HEAs) with grain-scale heterogeneous structure and coherent
precipitates have shown gigapascal strength and considerable ductility. However, the …

Transformation-reinforced high-entropy alloys with superior mechanical properties via tailoring stacking fault energy

SF Liu, Y Wu, HT Wang, WT Lin, YY Shang… - Journal of Alloys and …, 2019 - Elsevier
Face-centered cubic (fcc) HEAs, particularly the typical FeCoNiCrMn HEA, are promising for
cryogenic applications but generally exhibit relatively low strength at ambient temperature …

Regulation of strength and ductility of single-phase twinning-induced plasticity high-entropy alloys

D Wei, W Gong, T Kawasaki, S Harjo, H Kato - Scripta Materialia, 2022 - Elsevier
Near-equiatomic single-phase twining-induced plasticity (TWIP) high-entropy alloys (HEAs)
exhibit a good combination of strength and ductility, but their modest yield strength requires …

Si-addition contributes to overcoming the strength-ductility trade-off in high-entropy alloys

D Wei, W Gong, T Tsuru, I Lobzenko, X Li… - International Journal of …, 2022 - Elsevier
Face-centered cubic single-phase high-entropy alloys (HEAs) containing multi-principal
transition metals have attracted significant attention, exhibiting an unprecedented …

Inherent and multiple strain hardening imparting synergistic ultrahigh strength and ductility in a low stacking faulted heterogeneous high-entropy alloy

Z An, S Mao, Y Liu, L Yang, A Vayyala, X Wei, C Liu… - Acta Materialia, 2023 - Elsevier
Alloys with high yield strength and ductility are attractive for application because of their
potential to offer mass reduction, energy savings, and enhanced structural reliability …

Interstitial atoms enable joint twinning and transformation induced plasticity in strong and ductile high-entropy alloys

Z Li, CC Tasan, H Springer, B Gault, D Raabe - Scientific reports, 2017 - nature.com
High-entropy alloys (HEAs) consisting of multiple principle elements provide an avenue for
realizing exceptional mechanical, physical and chemical properties. We report a novel …