Understanding and design of metallic alloys guided by phase-field simulations

Y Zhao - npj Computational Materials, 2023‏ - nature.com
Phase-field method (PFM) has become a mainstream computational method for predicting
the evolution of nano and mesoscopic microstructures and properties during materials …

[HTML][HTML] Chemical inhomogeneities in high-entropy alloys help mitigate the strength-ductility trade-off

E Ma, C Liu - Progress in Materials Science, 2024‏ - Elsevier
Metallurgists have long been accustomed to a trade-off between yield strength and tensile
ductility. Extending previously known strain-hardening mechanisms, the emerging multi …

Revealing the deformation mechanisms of< 110> symmetric tilt grain boundaries in CoCrNi medium-entropy alloy

D Hua, Q Zhou, Y Shi, S Li, K Hua, H Wang, S Li… - International Journal of …, 2023‏ - Elsevier
The synergy of multiple deformation mechanisms responsible for the excellent mechanical
properties attracts an increasing interest in CoCrNi medium entropy alloy (MEA). In this …

Negative mixing enthalpy solid solutions deliver high strength and ductility

Z An, A Li, S Mao, T Yang, L Zhu, R Wang, Z Wu… - Nature, 2024‏ - nature.com
Body-centred cubic refractory multi-principal element alloys (MPEAs), with several refractory
metal elements as constituents and featuring a yield strength greater than one gigapascal …

Heterostructures enhance simultaneously strength and ductility of a commercial titanium alloy

D Wu, M Hao, T Zhang, Z Wang, J Wang, G Rao… - Acta Materialia, 2023‏ - Elsevier
Enhancing both strength and ductility simultaneously in commercial alloys at an industrial
scale remains a challenging task. In this study, we have demonstrated a simple heat …

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 …

A nanodispersion-in-nanograins strategy for ultra-strong, ductile and stable metal nanocomposites

Z Li, Y Zhang, Z Zhang, YT Cui, Q Guo, P Liu… - Nature …, 2022‏ - nature.com
Nanograined metals have the merit of high strength, but usually suffer from low work
hardening capacity and poor thermal stability, causing premature failure and limiting their …

Remarkable wear resistance in a complex concentrated alloy with nanohierarchical architecture and composition undulation

Y Geng, W Chen, H Tan, J Cheng, S Zhu, J Yang… - Research, 2023‏ - spj.science.org
Sustained wear damages on the sliding surfaces of alloys are generally the culprit
responsible for the failure of various mechanical systems. Inspired by high-entropy effects …

An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys

F Duan, Q Li, Z Jiang, L Zhou, J Luan, Z Shen… - Nature …, 2024‏ - nature.com
Nanocrystalline metallic materials have the merit of high strength but usually suffer from poor
ductility and rapid grain coarsening, limiting their practical application. Here, we introduce a …

Local chemical inhomogeneities in TiZrNb-based refractory high-entropy alloys

K Xun, B Zhang, Q Wang, Z Zhang, J Ding… - Journal of Materials …, 2023‏ - Elsevier
Multi-principal element solid solutions are prone to develop local chemical inhomogeneities,
ie, chemical order/clustering and/or compositional undulation. However, these structural …