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Defect evolution of neutron irradiated ITER grade tungsten after annealing. FUSION ENGINEERING AND DESIGN 2023. [DOI: 10.1016/j.fusengdes.2023.113486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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2
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Yabuuchi A. Inverse change in positron lifetimes of vacancies in tungsten by binding of interstitial impurity atoms to a vacancy: A first-principles study. NUCLEAR MATERIALS AND ENERGY 2023. [DOI: 10.1016/j.nme.2023.101364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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3
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Molecular dynamics simulations of displacement cascades in vanadium: Generation and types of dislocation loops. NUCLEAR MATERIALS AND ENERGY 2023. [DOI: 10.1016/j.nme.2023.101394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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4
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Papadakis D, Mergia K, Manios E, Chatzikos V, Dellis S, Messoloras S. Post Neutron Irradiation Annealing and Defect Evolution in Single Crystal Tungsten. NUCLEAR MATERIALS AND ENERGY 2022. [DOI: 10.1016/j.nme.2022.101357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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5
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Liski A, Vuoriheimo T, Jalkanen P, Mizohata K, Lu E, Likonen J, Heino J, Heinola K, Zayachuk Y, Widdowson A, Tseng KK, Tsai CW, Yeh JW, Tuomisto F, Ahlgren T. Irradiation Damage Independent Deuterium Retention in WMoTaNbV. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7296. [PMID: 36295361 PMCID: PMC9609576 DOI: 10.3390/ma15207296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
High entropy alloys are a promising new class of metal alloys with outstanding radiation resistance and thermal stability. The interaction with hydrogen might, however, have desired (H storage) or undesired effects, such as hydrogen-induced embrittlement or tritium retention in the fusion reactor wall. High entropy alloy WMoTaNbV and bulk W samples were used to study the quantity of irradiation-induced trapping sites and properties of D retention by employing thermal desorption spectrometry, secondary ion mass spectrometry, and elastic recoil detection analysis. The D implantation was not found to create additional hydrogen traps in WMoTaNbV as it does in W, while 90 at% of implanted D is retained in WMoTaNbV, in contrast to 35 at% in W. Implantation created damage predicted by SRIM is 0.24 dpa in WMoTaNbV, calculated with a density of 6.044×1022 atoms/cm3. The depth of the maximum damage was 90 nm. An effective trapping energy for D in WMoTaNbV was found to be about 1.7 eV, and the D emission temperature was close to 700 °C.
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Affiliation(s)
- Anna Liski
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Tomi Vuoriheimo
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Pasi Jalkanen
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Kenichiro Mizohata
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Eryang Lu
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Jari Likonen
- VTT, Otakaari 3J, P.O. Box 1000, 02150 Espoo, Finland
| | - Jouni Heino
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Kalle Heinola
- International Atomic Energy Agency, Vienna International Centre, P.O. Box 100, A-1400 Vienna, Austria
| | - Yevhen Zayachuk
- Culham Science Centre, UK Atomic Energy Authority, Abingdon OX14 3DB, UK
| | - Anna Widdowson
- Culham Science Centre, UK Atomic Energy Authority, Abingdon OX14 3DB, UK
| | - Ko-Kai Tseng
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Che-Wei Tsai
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
- High Entropy Materials Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jien-Wei Yeh
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
- High Entropy Materials Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Filip Tuomisto
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
| | - Tommy Ahlgren
- Department of Physics, Helsinki Institute of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland
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Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography. Nat Commun 2021; 12:7059. [PMID: 34862390 PMCID: PMC8642407 DOI: 10.1038/s41467-021-27224-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/01/2021] [Indexed: 11/18/2022] Open
Abstract
Small ion-irradiation-induced defects can dramatically alter material properties and speed up degradation. Unfortunately, most of the defects irradiation creates are below the visibility limit of state-of-the-art microscopy. As such, our understanding of their impact is largely based on simulations with major unknowns. Here we present an x-ray crystalline microscopy approach, able to image with high sensitivity, nano-scale 3D resolution and extended field of view, the lattice strains and tilts in crystalline materials. Using this enhanced Bragg ptychography tool, we study the damage helium-ion-irradiation produces in tungsten, revealing a series of crystalline details in the 3D sample. Our results lead to the conclusions that few-atom-large 'invisible' defects are likely isotropic in orientation and homogeneously distributed. A partially defect-denuded region is observed close to a grain boundary. These findings open up exciting perspectives for the modelling of irradiation damage and the detailed analysis of crystalline properties in complex materials.
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Jie Yang K, Liu YL, Liu ZL, Liu C, Shao P, Zhang X, Han QF. Basic physical behavior of impurity carbon in molybdenum for nuclear material: A systematical first-principles simulation. NUCLEAR MATERIALS AND ENERGY 2021. [DOI: 10.1016/j.nme.2021.101053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Li ZZ, Li YH, Ren QY, Ma FF, Yue FY, Zhou HB, Lu GH. Strain Dependence of Energetics and Kinetics of Vacancy in Tungsten. MATERIALS 2020; 13:ma13153375. [PMID: 32751529 PMCID: PMC7436091 DOI: 10.3390/ma13153375] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 11/29/2022]
Abstract
We investigate the influence of hydrostatic/biaxial strain on the formation, migration, and clustering of vacancy in tungsten (W) using a first-principles method, and show that the vacancy behaviors are strongly dependent on the strain. Both a monovacancy formation energy and a divacancy binding energy decrease with the increasing of compressive hydrostatic/biaxial strain, but increase with the increasing of tensile strain. Specifically, the binding energy of divacancy changes from negative to positive when the hydrostatic (biaxial) tensile strain is larger than 1.5% (2%). These results indicate that the compressive strain will facilitate the formation of monovacancy in W, while the tensile strain will enhance the attraction between vacancies. This can be attributed to the redistribution of electronic states of W atoms surrounding vacancy. Furthermore, although the migration energy of the monovacancy also exhibits a monotonic linear dependence on the hydrostatic strain, it shows a parabola with an opening down under the biaxial strain. Namely, the vacancy mobility will always be promoted by biaxial strain in W, almost independent of the sign of strain. Such unexpected anisotropic strain-enhanced vacancy mobility originates from the Poisson effect. On the basis of the first-principles results, the nucleation of vacancy clusters in strained W is further determined with the object kinetic Monte Carlo simulations. It is found that the formation time of tri-vacancy decrease significantly with the increasing of tensile strain, while the vacancy clusters are not observed in compressively strained W, indicating that the tensile strain can enhance the formation of voids. Our results provide a good reference for understanding the vacancy behaviors in W.
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Affiliation(s)
- Zhong-Zhu Li
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
| | - Yu-Hao Li
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
| | - Qing-Yuan Ren
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
| | - Fang-Fei Ma
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
| | - Fang-Ya Yue
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
| | - Hong-Bo Zhou
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
- Correspondence:
| | - Guang-Hong Lu
- Department of Physics, Beihang University, Beijing 100191, China; (Z.-Z.L.); (Y.-H.L.); (Q.-Y.R.); (F.-F.M.); (F.-Y.Y.); (G.-H.L.)
- Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 100191, China
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Wei W, Chen L, Gong HR, Fan JL. Strain-stress relationship and dislocation evolution of W-Cu bilayers from a constructed n-body W-Cu potential. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:305002. [PMID: 30995616 DOI: 10.1088/1361-648x/ab1a8a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An n-body W-Cu potential is constructed under the framework of the embedded-atom method by means of a proposed function of the cross potential. This W-Cu potential is realistic to reproduce mechanical property and structural stability of WCu solid solutions within the entire composition range, and has better performances than the three W-Cu potentials already published in the literature. Based on this W-Cu potential, molecular dynamics simulation is conducted to reveal the mechanical property and dislocation evolution of the bilayer structure between pure W and W0.7Cu0.3 solid solution. It is found that the formation of the interface improves the strength of the W0.7Cu0.3 solid solutions along tensile loading perpendicular to the interface, as the interface impedes the evolution of the dislocation lines from the W0.7Cu0.3 solid solutions to the W part. Simulation also reveals that the interface has an important effect to significantly reduce the tensile strength and critical strain of W along the tensile loading parallel to the interface, which is intrinsically due to the slip of the edge or screw dislocations at low strains as a result of the lattice mismatch.
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Affiliation(s)
- W Wei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, People's Republic of China
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10
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Feng YX, Shang JX, Qin SJ, Lu GH, Chen Y. Twin and dislocation mechanisms in tensile W single crystal with temperature change: a molecular dynamics study. Phys Chem Chem Phys 2018; 20:17727-17738. [PMID: 29915843 DOI: 10.1039/c8cp03241f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Molecular dynamics simulations are performed to investigate the orientation and temperature dependence of tensile response in single crystal W. It is found that W single crystal exhibits distinct temperature-dependent deformation behaviors along different orientations. With increasing temperature, the yield strain in the [001] orientation increases, while those in [110] and [111] orientations first increase and then decrease. The tensile deformations along orientations close to [001] are found to be dominated by twinning; the nucleation and growth of twins are accomplished through the nucleation and glide of ⅙111 partial dislocations on {112} planes. In contrast, the deformations along orientations close to [110] and [111] are found to be dominated by the slip of ½111 full dislocations, which move in a stay-and-go fashion. Moreover, intermediate deformation behaviors, which may become unstable at high temperatures, are observed for some intervening orientations. The distinct deformation behaviors of W along different orientations are rationalized based on the twinning-antitwinning asymmetry of ⅙111 partial dislocations on {112} planes.
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Affiliation(s)
- Ya-Xin Feng
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
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11
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Mason DR, Nguyen-Manh D, Becquart CS. An empirical potential for simulating vacancy clusters in tungsten. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:505501. [PMID: 29091589 DOI: 10.1088/1361-648x/aa9776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present an empirical interatomic potential for tungsten, particularly well suited for simulations of vacancy-type defects. We compare energies and structures of vacancy clusters generated with the empirical potential with an extensive new database of values computed using density functional theory, and show that the new potential predicts low-energy defect structures and formation energies with high accuracy. A significant difference to other popular embedded-atom empirical potentials for tungsten is the correct prediction of surface energies. Interstitial properties and short-range pairwise behaviour remain similar to the Ackford-Thetford potential on which it is based, making this potential well-suited to simulations of microstructural evolution following irradiation damage cascades. Using atomistic kinetic Monte Carlo simulations, we predict vacancy cluster dissociation in the range 1100-1300 K, the temperature range generally associated with stage IV recovery.
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Affiliation(s)
- D R Mason
- CCFE, Culham Centre for Fusion Energy, Abingdon, Oxfordshire OX14 3DB, United Kingdom
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12
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Wen SL, Chen JM, Liu X, Zhu H, Chang HY, Huang Z, Pan M, Zhao Y. First-principles study on mono-vacancy self diffusion and recovery in tungsten crystal. FUSION ENGINEERING AND DESIGN 2016. [DOI: 10.1016/j.fusengdes.2016.02.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Oda T. Thermodynamic model for grain boundary effects on hydrogen solubility, diffusivity and permeability in poly-crystalline tungsten. FUSION ENGINEERING AND DESIGN 2016. [DOI: 10.1016/j.fusengdes.2016.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Non-Contact Measurement of Thermal Diffusivity in Ion-Implanted Nuclear Materials. Sci Rep 2015; 5:16042. [PMID: 26527099 PMCID: PMC4630606 DOI: 10.1038/srep16042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 10/06/2015] [Indexed: 11/08/2022] Open
Abstract
Knowledge of mechanical and physical property evolution due to irradiation damage is essential for the development of future fission and fusion reactors. Ion-irradiation provides an excellent proxy for studying irradiation damage, allowing high damage doses without sample activation. Limited ion-penetration-depth means that only few-micron-thick damaged layers are produced. Substantial effort has been devoted to probing the mechanical properties of these thin implanted layers. Yet, whilst key to reactor design, their thermal transport properties remain largely unexplored due to a lack of suitable measurement techniques. Here we demonstrate non-contact thermal diffusivity measurements in ion-implanted tungsten for nuclear fusion armour. Alloying with transmutation elements and the interaction of retained gas with implantation-induced defects both lead to dramatic reductions in thermal diffusivity. These changes are well captured by our modelling approaches. Our observations have important implications for the design of future fusion power plants.
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15
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Niu LL, Zhang Y, Shu X, Jin S, Zhou HB, Gao F, Lu GH. Interplay between intrinsic point defects and low-angle grain boundary in bcc tungsten: effects of local stress field. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:255007. [PMID: 26045469 DOI: 10.1088/0953-8984/27/25/255007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have used molecular statics in conjunction with an embedded atom method to explore the interplay between native point defects (vacancies and self-interstitials (SIAs)) and a low-angle grain boundary (GB) in bcc tungsten. The low-angle GB has biased absorption of SIAs over vacancies. We emphasize the significance of phenomena such as vacancy delocalization and SIA instant absorption around the GB dislocation cores in stabilizing the defect structures. Interstitial loading into the GB can dramatically enhance the interaction strength between the point defects and the GB due to SIA clustering (SIA cloud formation) or SIA vacancy recombination. We propose that the 'maximum atom displacement' can complement the 'vacancy formation energy' in evaluating unstable vacancy sites. Calculations of point defect migration barriers in the vicinity of GB dislocation cores show that vacancies and SIAs preferentially migrate along the pathways in the planes immediately above and below the core, respectively.
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Affiliation(s)
- Liang-Liang Niu
- Department of Physics, Beihang University, Beijing 100191, People's Republic of China
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16
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Mason DR, Yi X, Kirk MA, Dudarev SL. Elastic trapping of dislocation loops in cascades in ion-irradiated tungsten foils. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:375701. [PMID: 25143235 DOI: 10.1088/0953-8984/26/37/375701] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Using in situ transmission electron microscopy (TEM), we have observed nanometre scale dislocation loops formed when an ultra-high-purity tungsten foil is irradiated with a very low fluence of self-ions. Analysis of the TEM images has revealed the largest loops to be predominantly of prismatic 1/2〈111〉 type and of vacancy character. The formation of such dislocation loops is surprising since isolated loops are expected to be highly mobile, and should escape from the foil. In this work we show that the observed size and number density of loops can be explained by the fact that the loops are not isolated-the loops formed in close proximity in the cascades interact with each other and with vacancy clusters, also formed in cascades, through long-range elastic fields, which prevent the escape of loops from the foil. We find that experimental observations are well reproduced by object Kinetic Monte Carlo simulations of evolution of cascades only if elastic interaction between the loops is taken into account. Our analysis highlights the profound effect of elastic interaction between defects on the microstructural evolution of irradiated materials.
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Affiliation(s)
- D R Mason
- EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, UK
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17
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Van Der Kolk GJ, Post K, Van Veen A, Pleiter F, De Hosson JTM. Interaction of vacancies with implanted metal atoms in tungsten observed by means of thermal helium desorption spectometry and perturbed angular correlation measurements. ACTA ACUST UNITED AC 2011. [DOI: 10.1080/00337578508218438] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Wolf D. Correlation effects for interstitial-type self-diffusion mechanisms in b.c.c. and f.c.c. crystals. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418618308245215] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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20
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Takaki S, Fuss J, Kuglers H, Dedek U, Schultz H. The resistivity recovery of high purity and carbon doped iron following low temperature electron irradiation. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/00337578308207398] [Citation(s) in RCA: 213] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Moriarty JA. Angular forces and melting in bcc transition metals: A case study of molybdenum. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:12431-12445. [PMID: 10010143 DOI: 10.1103/physrevb.49.12431] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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22
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Foiles SM. Interatomic interactions for Mo and W based on the low-order moments of the density of states. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:4287-4298. [PMID: 10008899 DOI: 10.1103/physrevb.48.4287] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Moriarty JA, Phillips R. First-principles interatomic potentials for transition-metal surfaces. PHYSICAL REVIEW LETTERS 1991; 66:3036-3039. [PMID: 10043682 DOI: 10.1103/physrevlett.66.3036] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Varotsos P, Eftaxias K, Alexopoulos K. Comment on "Self-diffusion in tungsten". PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:5170-5171. [PMID: 9997902 DOI: 10.1103/physrevb.43.5170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Moriarty JA. Analytic representation of multi-ion interatomic potentials in transition metals. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:1609-1628. [PMID: 9995590 DOI: 10.1103/physrevb.42.1609] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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26
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Neumann G, Tölle V. Self-diffusion in body-centred cubic metals: Analysis of experimental data. ACTA ACUST UNITED AC 1990. [DOI: 10.1080/01418619008231935] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Mundy JN, Ockers ST, Smedskjaer LC. Vacancy migration enthalpy in tungsten at high temperatures. ACTA ACUST UNITED AC 1987. [DOI: 10.1080/01418618708204493] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Schakfer HE, Banhart F. Thermal equilibrium vacancies in platinum studied by positron annihilation. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/pssa.2211040119] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Mundy JN, Ockers ST, Smedskjaer LC. Dehancement of impurity and self-diffusion in niobium by tungsten additions. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 33:847-853. [PMID: 9938343 DOI: 10.1103/physrevb.33.847] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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30
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Herschitz R, Seidman D. An atomic resolution study of homogeneous radiation-induced precipitation in a neutron irradiated W-10at.% Re alloy. ACTA ACUST UNITED AC 1984. [DOI: 10.1016/0001-6160(84)90121-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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