Hardening Ni3Al via complex stacking faults and twinning boundary

doi:10.1016/j.commatsci.2020.110201

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Hardening Ni3Al via complex stacking faults and twinning boundary
	Zhang ZW(张志伟)4,5; Fu, Qiang 2; Wang J(王军)5; Xiao P(肖攀)5; Ke FJ(柯孚久)3; Lu CS(卢春生)1
刊名	COMPUTATIONAL MATERIALS SCIENCE
	2021-02-15
卷号	188 页码:8
关键词	Ni3Al Complex stacking faults Hardness Twinning boundary Molecular dynamics
ISSN号	0927-0256
DOI	10.1016/j.commatsci.2020.110201
通讯作者	Wang, Jun(wangjun@lnm.imech.ac.cn)
英文摘要	Introducing nanoscale planar defects instead of adding alloying elements has been applied to improve the mechanical properties of materials. In this paper, we show that, from an atomistic perspective, hardness of nickel aluminide (Ni3Al) can be effectively enhanced by complex stacking faults and twinning boundary. The size effect of planar defects is induced by a competition between hardening because of regeneration of stacking faults and softening due to detwinning. The complex stacking faults have a better hardening effect than twinning boundaries with a spacing below 3.0 nm. These findings provide new insights into nanostructural design of aerospace materials with high hardness.
分类号	二类
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 ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000621033700001
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 ; LNMGrid of the State Key Laboratory of Nonlinear Mechanics
其他责任者	Wang, Jun
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86133]
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.Aero Engine Acad China, Beijing 101304, Peoples R China; 3.Beihang Univ, Sch Phys, Beijing 100191, 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. Hardening Ni3Al via complex stacking faults and twinning boundary[J]. COMPUTATIONAL MATERIALS SCIENCE,2021,188:8.
APA	张志伟,Fu, Qiang,王军,肖攀,柯孚久,&卢春生.(2021).Hardening Ni3Al via complex stacking faults and twinning boundary.COMPUTATIONAL MATERIALS SCIENCE,188,8.
MLA	张志伟,et al."Hardening Ni3Al via complex stacking faults and twinning boundary".COMPUTATIONAL MATERIALS SCIENCE 188(2021):8.