Severe local lattice distortion in Zr-and/or Hf-containing refractory multi-principal element alloys

Y Tong, S Zhao, H Bei, T Egami, Y Zhang, F Zhang - Acta Materialia, 2020 - Elsevier
Whereas exceptional mechanical and radiation performances have been found in the
emergent body-centered cubic (BCC) refractory multi-principal element alloys (RMPEAs) …

Defect accumulation and evolution in refractory multi-principal element alloys

S Zhao, Y Xiong, S Ma, J Zhang, B Xu, JJ Kai - Acta Materialia, 2021 - Elsevier
Refractory multiple principal elemental alloys (MPEAs) hold great promise for structural
materials in future nuclear energy systems. Compared to the extensively studied face …

Design of BCC refractory multi-principal element alloys with superior mechanical properties

W Lai, F Vogel, X Zhao, B Wang, Y Yi… - Materials Research …, 2022 - Taylor & Francis
The correlations between tensile properties and some common parameters in BCC
refractory multi-principal element alloys (RMPEAs) have been systematically investigated …

Vacancy formation energies and migration barriers in multi-principal element alloys

A Roy, P Singh, G Balasubramanian, DD Johnson - Acta Materialia, 2022 - Elsevier
Multi-principal element alloys (MPEAs) continue to garner interest as structural and plasma-
facing materials due to their structural (phase) stability and increased resistance to radiation …

Complex strengthening mechanisms in the NbMoTaW multi-principal element alloy

XG Li, C Chen, H Zheng, Y Zuo, SP Ong - npj Computational Materials, 2020 - nature.com
Refractory multi-principal element alloys (MPEAs) have exceptional mechanical properties,
including high strength-to-weight ratio and fracture toughness, at high temperatures. Here …

Computational discovery of ultra-strong, stable, and lightweight refractory multi-principal element alloys. Part I: design principles and rapid down-selection

KLM Elder, J Berry, B Bocklund, SK McCall… - npj Computational …, 2023 - nature.com
Refractory metal-based multi-principal element alloys (MPEAs) are compelling materials for
high-temperature (1000–2000 K) structural applications. However, only a minuscule fraction …

Multiplicity of dislocation pathways in a refractory multiprincipal element alloy

F Wang, GH Balbus, S Xu, Y Su, J Shin, PF Rottmann… - Science, 2020 - science.org
Refractory multiprincipal element alloys (MPEAs) are promising materials to meet the
demands of aggressive structural applications, yet require fundamentally different avenues …

Correlating dislocation mobility with local lattice distortion in refractory multi-principal element alloys

B Chen, S Li, J Ding, X Ding, J Sun, E Ma - Scripta Materialia, 2023 - Elsevier
Multi-principal element alloys (MPEAs) exhibit different degrees of intrinsic lattice distortion,
which varies with constituent species. Using atomistic simulations, here we found the …

Element-resolved local lattice distortion in complex concentrated alloys: An observable signature of electronic effects

HS Oh, K Odbadrakh, Y Ikeda, S Mu, F Körmann… - Acta Materialia, 2021 - Elsevier
Complex concentrated alloys (CCAs) are of growing interest due to their outstanding
mechanical properties that exceed the property limits of conventional alloys. Whereas the …

Atomistic simulations of the local slip resistances in four refractory multi-principal element alloys

RA Romero, S Xu, WR Jian, IJ Beyerlein… - International Journal of …, 2022 - Elsevier
The design and development of structural materials that can survive under the extreme
conditions of operation are critical to next generation aerospace and energy technologies …