Loop and void damage during heavy ion irradiation on nanocrystalline and coarse grained tungsten: Microstructure, effect of dpa rate, temperature, and grain size
Osman El-Atwani,E. Esquivel,Mert Efe,Eda Aydogan,Yongqiang Wang,Enrique Martínez,Stuart A. Maloy +6 more
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TLDR
In this article, the displacement damage through heavy ion irradiation was studied on two tungsten grades (coarse grained Tungsten (CGW) and nanocrystalline and ultrafine grained (NCW) using different displacement per atom rates and different irradiation temperatures (RT and 1050 K).About:
This article is published in Acta Materialia.The article was published on 2018-05-01 and is currently open access. It has received 78 citations till now.read more
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Outstanding radiation resistance of tungsten-based high-entropy alloys.
Osman El-Atwani,Nan Li,Mo Li,Arun Devaraj,Jon K. Baldwin,Matthew M. Schneider,Damian Sobieraj,Jan S. Wróbel,Duc Nguyen-Manh,Stuart A. Maloy,Enrique Martínez +10 more
TL;DR: A body-centered cubic W-based refractory high entropy alloy with outstanding radiation resistance has been developed, 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.
Journal ArticleDOI
Behavior of tungsten under irradiation and plasma interaction
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Outstanding Radiation Resistance of Tungsten-based High Entropy Alloys
Osman El-Atwani,Nan Li,Mo Li,Arun Devaraj,Matthew M. Schneider,Damian Sobieraj,Jan S. Wróbel,Duc Nguyen-Manh,Stuart A. Maloy,Enrique Martínez +9 more
TL;DR: In this article, a novel W-based refractory high entropy alloy with outstanding radiation resistance has been developed, which 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 APT.
Journal ArticleDOI
Radiation-Induced Helium Bubbles in Metals.
TL;DR: The current understanding of the behavior of He bubbles in metals is summarized; the mechanisms of He bubble nucleation, growth, and coarsening are overviewed; the latest methods of He control are introduced by using interfaces in nanocrystalline metals and metallic multilayers.
Journal ArticleDOI
Unprecedented irradiation resistance of nanocrystalline tungsten with equiaxed nanocrystalline grains to dislocation loop accumulation
Osman El-Atwani,E. Esquivel,Eda Aydogan,Enrique Martínez,Jon K. Baldwin,Mo Li,Blas P. Uberuaga,S.A. Maloy +7 more
TL;DR: In this article, the authors presented an in-situ transmission electron microscopy with ion irradiation study on equiaxed 35'nm grained tungsten (NCW-35'nm) and compared its radiation tolerance, in terms of dislocation loop damage.
References
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