Ultra-strong tungsten refractory high-entropy alloy via stepwise controllable coherent nanoprecipitations

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

19 Scopus Citations
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Author(s)

  • Tong Li
  • Tianwei Liu
  • Shiteng Zhao
  • Yan Chen
  • Junhua Luan
  • Zengbao Jiao
  • Lanhong Dai

Detail(s)

Original languageEnglish
Article number3006
Journal / PublicationNature Communications
Volume14
Online published25 May 2023
Publication statusPublished - 2023

Link(s)

Abstract

High-performance refractory alloys with ultrahigh strength and ductility are in demand for a wide range of critical applications, such as plasma-facing components. However, it remains challenging to increase the strength of these alloys without seriously compromising their tensile ductility. Here, we put forward a strategy to “defeat” this trade-off in tungsten refractory high-entropy alloys by stepwise controllable coherent nanoprecipitations (SCCPs). The coherent interfaces of SCCPs facilitate the dislocation transmission and relieve the stress concentrations that can lead to premature crack initiation. As a consequence, our alloy displays an ultrahigh strength of 2.15 GPa with a tensile ductility of 15% at ambient temperature, with a high yield strength of 1.05 GPa at 800 °C. The SCCPs design concept may afford a means to develop a wide range of ultrahigh-strength metallic materials by providing a pathway for alloy design. © The Author(s) 2023.

Research Area(s)

Citation Format(s)

Ultra-strong tungsten refractory high-entropy alloy via stepwise controllable coherent nanoprecipitations. / Li, Tong; Liu, Tianwei; Zhao, Shiteng et al.
In: Nature Communications, Vol. 14, 3006, 2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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