In this work we study the effects of different factors of dislocation loop on its obstacle strength when interacting with an edge dislocation. At first, the interaction model for dislocation and dislocation loop is established and the full and partial absorption mechanism is obtained. Then, the effect of temperature, size and burgers vector of dislocation loop are investigated. The relation between the obstacle strength and irradiation dose has been established, which bridges the irradiation source and microscale properties. Except that, the obstacle strength of C, Cr, Ni, Mn, Mo and P decorated dislocation loop is studied. Results show that the obstacle strength for dislocation loop decorated by alloy element decreases in the sequence of Cr, Ni, Mn, C, P and Mo, which could be used to help parameterize and validate crystal plasticity finite element model and therein integrated constitutive laws to enable accounting for irradiation-induced chemical segregation effects.
STUDY ON THE MICROSTRUCTURE EVOLUTION OF A508-3 STEEL UNDER PROTON IRRADIARION
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Confinement of motion of interstitial clusters and dislocation loops in BCC Fe–Cr alloys
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Radiation hardening revisited: role of intracascade clustering
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An atomic-level model for studying the dynamics of edge dislocations in metals
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Hardening due to dislocation loop damage in RPV model alloys: Role of Mn segregation
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The effect of temperature and strain rate on the interaction between an edge dislocation and an interstitial dislocation loop in α-iron
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Molecular dynamics simulations of the interactions between screw dislocations and self-interstitial clusters in body-centered cubic Fe
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Computer simulation of reactions between an edge dislocation and glissile self-interstitial clusters in iron
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9
Fast Parallel Algorithms for Short-Range Molecular Dynamics
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Competing processes in reactions between an edge dislocation and dislocation loops in a body-centred cubic metal
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Effect of irradiation temperature on microstructure, radiation hardening and embrittlement of pure copper and copper-based alloy
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Effect of carbon decoration on the absorption of 〈100〉 dislocation loops by dislocations in iron
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Metallic-covalent interatomic potential for carbon in iron
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Comparison of empirical interatomic potentials for iron applied to radiation damage studies
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Modified embedded-atom method interatomic potentials for pure Mn and the Fe–Mn system
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Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool
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Simulation of the interaction between an edge dislocation and a 〈1 0 0〉 interstitial dislocation loop in α-iron
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Segregation of cascade induced interstitial loops at dislocations: possible effect on initiation of plastic deformation
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Embedded-atom potential for an accurate thermodynamic description of the iron–chromium system
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Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12at%Cr: Comparison of SANS and APT
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Mechanisms of hardening due to copper precipitates in α-iron
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A model for the dynamics of loop drag by a gliding dislocation
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Development of new interatomic potentials appropriate for crystalline and liquid iron
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Glass transition temperatures of polymer thin films monitored by Raman scattering
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Automated identification and indexing of dislocations in crystal interfaces
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Embrittlement of nuclear reactor pressure vessels
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Assessment of hardening due to dislocation loops in bcc iron: Overview and analysis of atomistic simulations for edge dislocations
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60th Anniversary of electricity production from light water reactors: Historical review of the contribution of materials science to the safety of the pressure vessel
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29
Modified embedded-atom interatomic potential for Fe-Ni, Cr-Ni and Fe-Cr-Ni systems
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Effect of Segregation of Ni and Cr at Dislocation Loops on Their Interaction with Gliding Dislocations in Irradiated Fe−Ni−Cr BCC Alloys
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31
Effects of neutron irradiation on magnetic properties of reactor pressure vessel steel
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Effects of neutron irradiation on elastic modulus of RPV steel
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The effects of interaction geometry on pinning strength induced by interstitial dislocation loop in BCC-Fe
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Dynamical stability of radiation-induced C15 clusters in iron
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Nano-hardening features in high-dose neutron irradiated Eurofer97 revealed by atom-probe tomography
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The combined effect of carbon and chromium enrichment on 〈1 0 0〉 loop absorption in iron
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Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel
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Dislocation –obstacle interactions at the atomic level
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A neural network model for high entropy alloy design