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Evolution of Dislocation Loops in 30 keV He+-Irradiated W-0.5% ZrC Alloys: In Situ TEM Observations and Molecular Dynamics Simulations

文献类型：期刊论文

作者Liu, Xinyi1; Chen, Zhe2; Wang, Hao4; Li, Yipeng1,2; Xie, Zhuoming3; Liu, Xiang4; Ran, Guang1,2
刊名ACS APPLIED ENERGY MATERIALS
出版日期2022-02-02
ISSN号2574-0962
关键词plasma-facing materials W-ZrC alloy in situ irradiation dislocation loop molecular dynamics simulation
DOI10.1021/acsaem.1c03915
通讯作者Wang, Hao(hwang@swip.ac.cn) ; Ran, Guang(gran@xmu.edu.cn)
英文摘要In situ irradiations with 30 keV He+ have been performed on W-0.5 wt % ZrC at 823 and 1073 K. Detailed characterization showed that the dislocation loops around the ZrC particles with the size range of similar to 120-370 nm were lower in density and smaller than that far away from these particles. The larger the sizes of ZrC particles, the lower the density and smaller the sizes of dislocation loops around the particles would be. In contrast, the higher density of dislocation loops with larger sizes around the ZrC particles with the size range of similar to 20-60 nm was displayed. The interaction between a (100) dislocation line and a (100) dislocation loop was in situ observed and investigated by molecular dynamics simulation for the first time. The reacted (100) dislocations with the orthogonal Burgers vectors are more likely to be responsible for the interaction than that with the parallel geometry. The interaction required the generation of glissile 1/2(111) dislocation segments, which acted as an "intermediate bridge" between the reacted sessile dislocations. The current results will be of benefit to deeply understand the irradiation behavior of the W-ZrC alloy acting as the plasma-facing materials for the application of fusion reactors.
WOS关键词PLASMA-FACING COMPONENTS ; MECHANICAL-PROPERTIES ; STRENGTHENED TUNGSTEN ; ION IRRADIATION ; W-ALLOYS ; HELIUM ; DAMAGE ; HYDROGEN ; DEFECTS ; MIGRATION
资助项目National Natural Science Foundation of China[11975191] ; National Natural Science Foundation of China[11905045] ; National Natural Science Foundation of China[U1967211] ; HPC Platform, Southwestern Institute of Physics
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000757839900001
资助机构National Natural Science Foundation of China ; HPC Platform, Southwestern Institute of Physics
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127930]  
专题中国科学院合肥物质科学研究院
通讯作者Wang, Hao; Ran, Guang
作者单位1.Xiamen Univ, Coll Energy, Xiamen 361102, Peoples R China
2.Fujian Res Ctr Nucl Engn, Xiamen 361102, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
4.Southwestern Inst Phys, Chengdu 610041, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xinyi,Chen, Zhe,Wang, Hao,et al. Evolution of Dislocation Loops in 30 keV He+-Irradiated W-0.5% ZrC Alloys: In Situ TEM Observations and Molecular Dynamics Simulations[J]. ACS APPLIED ENERGY MATERIALS,2022.
APA Liu, Xinyi.,Chen, Zhe.,Wang, Hao.,Li, Yipeng.,Xie, Zhuoming.,...&Ran, Guang.(2022).Evolution of Dislocation Loops in 30 keV He+-Irradiated W-0.5% ZrC Alloys: In Situ TEM Observations and Molecular Dynamics Simulations.ACS APPLIED ENERGY MATERIALS.
MLA Liu, Xinyi,et al."Evolution of Dislocation Loops in 30 keV He+-Irradiated W-0.5% ZrC Alloys: In Situ TEM Observations and Molecular Dynamics Simulations".ACS APPLIED ENERGY MATERIALS (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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