Outstanding radiation resistance of tungsten-based high-entropy alloys
Los Alamos National Laboratory · Center for Integrated Nanotechnologies · +4 more institutions
Abstract
A body-centered cubic W-based refractory high entropy alloy with outstanding radiation resistance has been developed. The alloy was grown as thin films showing a bimodal grain size distribution in the nanocrystalline and ultrafine regimes and a unique 4-nm lamella-like structure revealed by atom probe tomography (APT). Transmission electron microscopy (TEM) and x-ray diffraction show certain black spots appearing after thermal annealing at elevated temperatures. TEM and APT analysis correlated the black spots with second-phase particles rich in Cr and V. No sign of irradiation-created dislocation loops, even after 8 dpa, was observed. Furthermore, nanomechanical testing shows a large hardness of 14 GPa in the…
Citation impact
- FWCI
- 37.79
- Percentile
- 100%
- References
- 42
Authors
11- OEOsman El‐AtwaniCorresponding
Los Alamos National Laboratory
- NLNan Li
Los Alamos National Laboratory, Center for Integrated Nanotechnologies
- MLM. Li
Argonne National Laboratory
- ADArun Devaraj
Pacific Northwest National Laboratory
- JKJon K. Baldwin
Los Alamos National Laboratory, Center for Integrated Nanotechnologies
Topics & keywords
- Tungsten
- Radiation resistance
- High entropy alloys
- Radiation
- Materials science
- Metallurgy
- Physics
- Alloy
Funding
- UDU.S. Department of EnergyAwards: AC07-051D14517, DE-AC07-051D14517, EP/P012450/1, 2014-2018, 051D14517, 633053, DE-SC0008875, 89233218CNA000001
- CFCenter for Integrated NanotechnologiesAward: 89233218CNA000001
- GTGlenn T. Seaborg InstituteAward: 89233218CNA000001
- EEUROfusionAward: 633053
- RCResearch Councils UKAwards: EP/P012450/1, 633053
- ECEuropean CommissionAward: 633053
- FNFundacja na rzecz Nauki PolskiejAwards: HOMING (No. Homing/2016-1/12), Homing/2016-1/12
- UWUniwersytet WarszawskiAward: GA69-30
- OOOffice of ScienceAwards: 89233218CNA000001, DE-SC0008875, 633053, DE-AC07-051D14517
- OOOffice of Nuclear EnergyAwards: DE-AC07-051D14517, 89233218CNA000001
- NNNational Nuclear Security AdministrationAward: 89233218CNA000001
- CCCulham Centre for Fusion EnergyAwards: EP/P012450/1, 633053
- IOIdaho Operations Office, U.S. Department of EnergyAwards: AC07-051D14517, DE-AC07-051D14517
- EREuratom Research and Training ProgrammeAwards: 2014-2018, 633053
- EAEngineering and Physical Sciences Research CouncilAwards: EP/G003955/1, EP/P012450/1
- EREuropean Regional Development FundAward: 633053
- ASAdvanced Scientific Computing ResearchAwards: SC0008875, 89233218CNA000001, DE-SC0008875
- BABiological and Environmental ResearchAward: 89233218CNA000001
- FEFusion Energy SciencesAwards: 633053, DE-SC0008875, 89233218CNA000001
- LDLaboratory Directed Research and DevelopmentAwards: 89233218CNA000001, 20160674PRD3, DE-AC07-051D14517
- LALos Alamos National LaboratoryAwards: 20160674PRD3, 89233218CNA000001
- PNPacific Northwest National Laboratory