Solving oxygen embrittlement of refractory high-entropy alloy via grain boundary engineering

Z Wang, H Wu, Y Wu, H Huang, X Zhu, Y Zhang, H Zhu… - Materials Today, 2022 - Elsevier
Refractory high-entropy alloys (RHEAs), particularly NbMoTaW RHEAs, exhibit outstanding
softening resistance and thermal stability at ultra-high temperatures, but suffer from room …

Micro/nanoscale electrohydrodynamic printing for functional metallic structures

Z Meng, J Li, Y Chen, T Gao, K Yu, B Gu, M Qu, X Li… - Materials Today …, 2022 - Elsevier
Metallic additive manufacturing (AM) techniques have substantially liberated the
architectural design philosophy of macro/mesoscale functional structures from ease of …

Deformation twinning in body-centered cubic metals and alloys

X Li, Z Zhang, J Wang - Progress in Materials Science, 2023 - Elsevier
Deformation twinning is an important plastic carrier competing with the ordinary dislocation
slip in a broad class of crystalline solids, which critically controls the mechanical properties …

Mapping pure plastic strains against locally applied stress: Revealing toughening plasticity

TEJ Edwards, X Maeder, J Ast, L Berger, J Michler - Science Advances, 2022 - science.org
The deformation of all materials can be separated into elastic and plastic parts. Measuring
the purely plastic component is complex but crucial to fully characterize, understand, and …

Enhanced tensile ductility of tungsten microwires via high-density dislocations and reduced grain boundaries

C Dang, W Lin, F Meng, H Zhang, S Fan, X Li… - Journal of Materials …, 2021 - Elsevier
Despite being strong with many outstanding physical properties, tungsten is inherently brittle
at room temperature, restricting its structural and functional applications at small scales …

Experimental molecular dynamics for individual atomic-scale plastic events in nanoscale crystals

S Zheng, S Shinzato, S Ogata, SX Mao - … of the Mechanics and Physics of …, 2022 - Elsevier
The experimental determination of critical stresses for yielding and plastic flow is of upmost
importance for the understanding of the atomic-scale mechanical behaviors of nanoscale …

Effect of twin boundaries on the strength of body-centered cubic tungsten nanowires

J Cui, L Ma, G Chen, N Jiang, P Ke, Y Yang… - Materials Science and …, 2023 - Elsevier
Twin boundaries (TBs) are assumed to be obstacles to dislocation motion and increase the
strength of metals. Here, we report the abnormal phenomenon that TBs reduce the strength …

Molecular-Dynamics Analysis of the Mechanical Behavior of Plasma-Facing Tungsten

A Weerasinghe, E Martinez, BD Wirth… - ACS Applied Materials …, 2023 - ACS Publications
We report a systematic computational analysis of the mechanical behavior of plasma-facing
component (PFC) tungsten focusing on the impact of void and helium (He) bubble defects …

Twinning and antitwinning in body-centered cubic metals

R Gröger, J Holzer, T Kruml - Computational Materials Science, 2023 - Elsevier
Deformation twinning in body-centered cubic (BCC) metals occurs by shearing the crystal
along {112} planes parallel to< 111> directions. One of these directions (twinning shear) …

Shear band mediated ω phase transformation in Nb single crystals deformed at 77 K

X Li, Q Zhao, Q Wang, Y Tian, H Zhou… - Materials Research …, 2021 - Taylor & Francis
Phase transformation is rare in pure body-centered cubic (BCC) metals due to the
associated high energy barrier. Here, omega (ω) phase transformation in single-crystal …