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Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al

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; Ke FJ(柯孚久); Xiao P(肖攀); Yang R(杨荣)
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
出版日期2021-04-22
页码7
ISSN号1463-9076
DOI10.1039/d1cp00741f
通讯作者Wang, Jun(wangjun@lnm.imech.ac.cn)
英文摘要Understanding the interactions between planar defects and complex dislocation structures in a material is of great significance to simplify its design. In this paper, we show that, from an atomistic perspective, by using molecular dynamics simulations on nanoindentations, a prismatic dislocation loop in Ni3Al appears in pairs with a butterfly-like shape. The planar defects in Ni3Al can effectively block the movement of the prismatic dislocation loop pairs and play a hardening role. Among the impediment factors, twinning boundaries are the strongest and antiphase boundaries are the weakest. Superlattice intrinsic and complex stacking faults have basically the same blocking effect. Furthermore, we systematically elucidate the hardening effects and interaction mechanisms between the prismatic dislocation loop pairs and planar defects. These findings provide novel insights into the nanostructured design of materials with excellent mechanical properties.
分类号二类/Q1
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 ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000642102200001
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 ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics
其他责任者Wang, Jun
源URL[http://dspace.imech.ac.cn/handle/311007/86458]  
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. Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2021:7.
APA 张志伟.,Fu Qiang.,王军.,杨荣.,肖攀.,...&Zhang ZW.(2021).Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,7.
MLA 张志伟,et al."Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al".PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021):7.

入库方式： OAI收割

来源：力学研究所

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