Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel
A multiscale crystal plasticity finite element model, which combines molecular dynamics with crystal plasticity theory, is proposed. In this model, the evolution equations for partial- and full-absorption dislocation loops are utilized. Furthermore, we introduce the absorption probability in the cry...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Nuclear Materials and Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179122000989 |
| _version_ | 1828144403961610240 |
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| author | Pandong Lin Junfeng Nie Meidan Liu |
| author_facet | Pandong Lin Junfeng Nie Meidan Liu |
| author_sort | Pandong Lin |
| collection | DOAJ |
| description | A multiscale crystal plasticity finite element model, which combines molecular dynamics with crystal plasticity theory, is proposed. In this model, the evolution equations for partial- and full-absorption dislocation loops are utilized. Furthermore, we introduce the absorption probability in the crystal plasticity framework using the parameters at the atomic scale, which connects the microscale and mesoscale. The proposed method is applied to analyze the mechanical behavior of irradiated body-center-cubic (BCC) A508-3 steel. It was found that the numerical results agree well with the experimental data, which demonstrates the feasibility and accuracy of this model. Irradiation hardening was captured by the proposed model. Considering parameter evolution, irradiation can accelerate the increase in mobile dislocations and impede the decrease of immobile dislocations. The proposed model may provide a theoretical guide for predicting the mechanical behaviors of irradiated BCC metals for the selection of structural materials in nuclear plants. |
| first_indexed | 2024-04-11T20:14:27Z |
| format | Article |
| id | doaj.art-196f863d9c774ec2aa3d12f63059b961 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-04-11T20:14:27Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-196f863d9c774ec2aa3d12f63059b9612022-12-22T04:05:00ZengElsevierNuclear Materials and Energy2352-17912022-09-0132101214Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steelPandong Lin0Junfeng Nie1Meidan Liu2Institute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, PR ChinaCorresponding author at: Institute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, PR China.; Institute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, PR ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, PR ChinaA multiscale crystal plasticity finite element model, which combines molecular dynamics with crystal plasticity theory, is proposed. In this model, the evolution equations for partial- and full-absorption dislocation loops are utilized. Furthermore, we introduce the absorption probability in the crystal plasticity framework using the parameters at the atomic scale, which connects the microscale and mesoscale. The proposed method is applied to analyze the mechanical behavior of irradiated body-center-cubic (BCC) A508-3 steel. It was found that the numerical results agree well with the experimental data, which demonstrates the feasibility and accuracy of this model. Irradiation hardening was captured by the proposed model. Considering parameter evolution, irradiation can accelerate the increase in mobile dislocations and impede the decrease of immobile dislocations. The proposed model may provide a theoretical guide for predicting the mechanical behaviors of irradiated BCC metals for the selection of structural materials in nuclear plants.http://www.sciencedirect.com/science/article/pii/S2352179122000989Crystal plasticityMolecular dynamicsIrradiation hardeningDislocationDislocation loop evolution |
| spellingShingle | Pandong Lin Junfeng Nie Meidan Liu Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel Nuclear Materials and Energy Crystal plasticity Molecular dynamics Irradiation hardening Dislocation Dislocation loop evolution |
| title | Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel |
| title_full | Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel |
| title_fullStr | Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel |
| title_full_unstemmed | Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel |
| title_short | Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel |
| title_sort | multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of a508 3 steel |
| topic | Crystal plasticity Molecular dynamics Irradiation hardening Dislocation Dislocation loop evolution |
| url | http://www.sciencedirect.com/science/article/pii/S2352179122000989 |
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