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

doi:10.1016/j.ijsolstr.2021.111128

IMECH-IR > 非线性力学国家重点实验室

	Interaction between the edge dislocation dipole pair and interfacial misfit dislocation network in Ni-based single crystal superalloys
	Zhang ZW(张志伟)1,2 ; Fu, Qiang3 ; Wang J(王军)1 ; Yang R(杨荣)1 ; Xiao P(肖攀)1 ; Ke FJ(柯孚久)4 ; Lu CS(卢春生)5
通讯作者	Wang, Jun(wangjun@lnm.imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
	2021-10-01
卷号	228 页码:8
ISSN	0020-7683
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.
关键词	Ni-based single crystal superalloys Edge dislocation dipole pair Interfacial misfit dislocation network Interacting mechanism Molecular dynamics
DOI	10.1016/j.ijsolstr.2021.111128
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000685004100004
关键词[WOS]	MOLECULAR-DYNAMICS SIMULATION ; MICROSTRUCTURE EVOLUTION ; PLASTIC-DEFORMATION ; NI/NI3AL INTERFACE ; LATTICE MISFIT ; LOADING RATE ; STRENGTH ; NI3AL ; BEHAVIOR ; MOTION
WOS研究方向	Mechanics
WOS类目	Mechanics
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
项目资助者	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
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Wang, Jun
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87258
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Aero Engine Acad China, Beijing 101304, Peoples R China; 4.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China; 5.Curtin Univ, Sch Civil & Mech Engn, Perth, WA 6845, Australia
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.

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