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Interaction between the edge dislocation dipole pair and interfacial misfit dislocation network in Ni-based single crystal superalloys

文献类型：期刊论文

作者Zhang ZW(张志伟)4,5; Fu, Qiang3; Wang J(王军)5; Yang R(杨荣)5; Xiao P(肖攀)5; Ke FJ(柯孚久)2; Lu CS(卢春生)1
刊名INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
出版日期2021-10-01
卷号228页码:8
关键词Ni-based single crystal superalloys Edge dislocation dipole pair Interfacial misfit dislocation network Interacting mechanism Molecular dynamics
ISSN号0020-7683
DOI10.1016/j.ijsolstr.2021.111128
通讯作者Wang, Jun(wangjun@lnm.imech.ac.cn)
英文摘要Understanding the intrinsic strengthening mechanism is of great significance for microstructural design of Ni-based single crystal superalloys. In this paper, from an atomistic perspective, the interacting mechanism between edge dislocation dipole pair and interfacial misfit dislocation network has been elaborated. It is shown that a network of interfacial misfit dislocations can effectively impede the movement of matrix dislocations, accommodate and pile up the edge dislocation dipole pairs in Ni matrix. Furthermore, we have systematically elucidated the influence of loading rates on the stimulating period of edge dislocation dipole pairs and stiffness of Ni/Ni3Al substrate. These findings provide a better understanding of the interfacial strengthening mechanism of Ni-based single crystal superalloys. (C) 2021 Elsevier Ltd. All rights reserved.
分类号一类/力学重要期刊
WOS关键词MOLECULAR-DYNAMICS SIMULATION ; MICROSTRUCTURE EVOLUTION ; PLASTIC-DEFORMATION ; NI/NI3AL INTERFACE ; LATTICE MISFIT ; LOADING RATE ; STRENGTH ; NI3AL ; BEHAVIOR ; MOTION
资助项目National Natural Science Foundation of China[11772332] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Government ; Government of Western Australia
WOS研究方向Mechanics
语种英语
WOS记录号WOS:000685004100004
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Government ; Government of Western Australia
其他责任者Wang, Jun
源URL[http://dspace.imech.ac.cn/handle/311007/87257]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Curtin Univ, Sch Civil & Mech Engn, Perth, WA 6845, Australia
2.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China;
3.Aero Engine Acad China, Beijing 101304, Peoples R China;
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Zhang ZW,Fu, Qiang,Wang J,et al. Interaction between the edge dislocation dipole pair and interfacial misfit dislocation network in Ni-based single crystal superalloys[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2021,228:8.
APA 张志伟.,Fu, Qiang.,王军.,杨荣.,肖攀.,...&卢春生.(2021).Interaction between the edge dislocation dipole pair and interfacial misfit dislocation network in Ni-based single crystal superalloys.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,228,8.
MLA 张志伟,et al."Interaction between the edge dislocation dipole pair and interfacial misfit dislocation network in Ni-based single crystal superalloys".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 228(2021):8.

入库方式： OAI收割

来源：力学研究所

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