An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys

doi:10.1038/s41467-024-50984-9

IMR OpenIR

	An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys
	Duan, Fenghui 1; Li, Qian 2; Jiang, Zhihao 1; Zhou, Lin 1; Luan, Junhua 2; Shen, Zheling 3,4; Zhou, Weihua 3; Zhang, Shiyuan 3; Pan, Jie 5,6; Zhou, Xin 2; Yang, Tao 2; Lu, Jian 1,7,8
通讯作者	Yang, Tao(taoyang6@cityu.edu.hk) ; Lu, Jian(jianlu@cityu.edu.hk)
	2024-08-09
发表期刊	NATURE COMMUNICATIONS
卷号	15 期号:1 页码:9
摘要	Nanocrystalline metallic materials have the merit of high strength but usually suffer from poor ductility and rapid grain coarsening, limiting their practical application. Here, we introduce a core-shell nanostructure in a multicomponent alloy to address these challenges simultaneously, achieving a high tensile strength of 2.65 GPa, a large uniform elongation of 17%, and a high thermal stability of 1173 K. Our strategy relies on an ordered superlattice structure that excels in dislocation accumulation, encased by a approximate to 3 nm disordered face-centered-cubic nanolayer acting as dislocation sources. The ordered superlattice with high anti-phase boundary energy retards dislocation motions, promoting their interaction and storage within the nanograins. The disordered interfacial nanolayer promotes dislocation emission and effectively accommodates the plastic strain at grain boundaries, preventing intergranular cracking. Consequently, the order-disorder core-shell nanostructure exhibits enhanced work-hardening capability and large ductility. Moreover, such core-shell nanostructure exhibits high coarsening resistance at elevated temperatures, enabling it high thermal stability. Such a design strategy holds promise for developing high-performance materials. Nanocrystalline metallic materials have the merit of high strength, but usually suffer from poor ductility and rapid grain coarsening. Here, the authors develop a nanocrystalline core-shell alloy to overcome these challenges.
资助者	Research Grants Council, University Grants Committee (RGC, UGC) ; Liaoning Academy of Science ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme ; Hong Kong General Research Fund (GRF) Scheme ; Hong Kong Innovation and Technology Commission via the Hong Kong Branch of National Precious Metals Material Engineering Research Center ; National Natural Science Foundation of China ; Hong Kong Research Grant Council (RGC) ; Inter-University 3D APT Unit of City University of Hong Kong (CityU) ; CityU grant
DOI	10.1038/s41467-024-50984-9
收录类别	SCI
语种	英语
资助项目	Research Grants Council, University Grants Committee (RGC, UGC) ; Liaoning Academy of Science[N_CityU151/23] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[CityU 11216219] ; Hong Kong General Research Fund (GRF) Scheme ; Hong Kong Innovation and Technology Commission via the Hong Kong Branch of National Precious Metals Material Engineering Research Center[52101162] ; National Natural Science Foundation of China[11208823] ; Hong Kong Research Grant Council (RGC) ; Inter-University 3D APT Unit of City University of Hong Kong (CityU)[9360161] ; CityU grant
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001297221600032
出版者	NATURE PORTFOLIO
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189434
专题	中国科学院金属研究所
通讯作者	Yang, Tao; Lu, Jian
作者单位	1.City Univ Hong Kong, Dept Mech Engn, Lab Nanomat & Nanomech, Hong Kong, Peoples R China 2.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 5.Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China 6.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China 7.City Univ Hong Kong, Ctr Adv Struct Mat, Shenyang Natl Lab Mat Sci, Greater Bay Joint Div,Shenzhen Res Inst, Shenzhen, Peoples R China 8.CityU Shenzhen Futian Res Inst, Shenzhen 518045, Peoples R China
推荐引用方式 GB/T 7714	Duan, Fenghui,Li, Qian,Jiang, Zhihao,et al. An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys[J]. NATURE COMMUNICATIONS,2024,15(1):9.
APA	Duan, Fenghui.,Li, Qian.,Jiang, Zhihao.,Zhou, Lin.,Luan, Junhua.,...&Lu, Jian.(2024).An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys.NATURE COMMUNICATIONS,15(1),9.
MLA	Duan, Fenghui,et al."An order-disorder core-shell strategy for enhanced work-hardening capability and ductility in nanostructured alloys".NATURE COMMUNICATIONS 15.1(2024):9.