Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al | |
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 | |
发表期刊 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS |
2021-04-22 | |
页码 | 7 |
ISSN | 1463-9076 |
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. |
DOI | 10.1039/d1cp00741f |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000642102200001 |
WOS研究方向 | Chemistry ; Physics |
WOS类目 | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
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 |
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 ; ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics |
论文分区 | 二类/Q1 |
力学所作者排名 | 1 |
RpAuthor | Wang, Jun |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/86459 |
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. Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2021:7. |
APA | Zhang ZW.,Fu Qiang.,Wang J.,Yang R.,Xiao P.,...&Lu CS.(2021).Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,7. |
MLA | Zhang ZW,et al."Interactions between butterfly-like prismatic dislocation loop pairs and planar defects in Ni3Al".PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021):7. |
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