Hardness-thermal stability synergy in nanograined Ni and Ni alloys: Superposition of nanotwin and low-energy columnar boundary

doi:10.1016/j.jmst.2022.07.043

IMR OpenIR

	Hardness-thermal stability synergy in nanograined Ni and Ni alloys: Superposition of nanotwin and low-energy columnar boundary
	Duan, F. H.1,2; Lin, Y.3,4; Li, Q.1,5; Luan, J. H.5; Lu, J.2,6,7; Pan, J.1,3,4; Li, Y.1
通讯作者	Pan, J.(jpan@hust.edu.cn) ; Li, Y.(liyi@imr.ac.cn)
	2023-02-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	137 页码:123-131
摘要	Refining grains into nanoscale can significantly strengthen and harden metallic materials; however, nanograined metals generally exhibit low thermal stability, hindering their practical applications. In this work, we exploit the superposition of the contribution of nanotwins, low-angle grain boundaries, and microalloying to tailor superior combinations of high hardness and good thermal stability in Ni and Ni alloys. For the nanotwinned Ni having a twin thickness of similar to 2.9 nm and grain size of 28 nm, it exhibits a hardness over 8.0 GPa and an onset coarsening temperature of 623 K, both of which are well above those of nanograined Ni. Re/Mo microalloying can further improve the onset coarsening temperature to 773 K without comprising hardness. Our analyses reveal that high hardness is achieved via strengthen-ing offered by extremely fine nanotwins. Meanwhile, the superior thermal stability is mainly ascribed to the low driving force for grain growth induced by the low-angle columnar boundary architecture and to the additional pinning effect on the migration of twin/columnar boundaries provided by minor Re/Mo solutes. The present work not only reveals a family of nanotwinned metals possessing the combination of ultra-high hardness and high thermal stability but also provides a strategy for tailoring properties of metallic materials by pairing low-angle grain boundaries and twin boundaries.(c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Nanotwin Thermal stability Hardness Low-angle grain boundary Microalloying
资助者	National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science ; Youth In-novation Promotion Association of the Chinese Academy of Sci-ences ; National Key R&D Program of China ; Major Program of the National Natural Science Foundation of China (NSFC) ; Hong Kong Collaborative Research Fund (CRF) Scheme ; Gen-eral Research Fund (GRF) Scheme ; Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone Shenzhen Park Project ; CityU grant ; Theme-Based Research Scheme
DOI	10.1016/j.jmst.2022.07.043
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[5202210 0] ; National Natural Science Foundation of China[520 01075] ; National Natural Science Foundation of China[52101162] ; Shenyang National Laboratory for Materials Science[E01SL102] ; Youth In-novation Promotion Association of the Chinese Academy of Sci-ences[2020194] ; National Key R&D Program of China[2017YFA0204403] ; Major Program of the National Natural Science Foundation of China (NSFC)[51590892] ; Hong Kong Collaborative Research Fund (CRF) Scheme[C4026-17W] ; Gen-eral Research Fund (GRF) Scheme[CityU 11247516] ; Gen-eral Research Fund (GRF) Scheme[CityU 11209918] ; Gen-eral Research Fund (GRF) Scheme[CityU 11216219] ; Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone Shenzhen Park Project[HZQB-KCZYB-2020030] ; CityU grant[9360161] ; Theme-Based Research Scheme[T13-402/17-N]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000865411300008
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176262
专题	中国科学院金属研究所
通讯作者	Pan, J.; Li, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.City Univ Hong Kong, Dept Mech Engn, Lab Nanomat & Nanomech, Hong Kong, Peoples R China 3.Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China 4.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China 5.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong, Peoples R China 6.City Univ Hong Kong, Shenzhen Res Inst, Ctr Adv Struct Mat, Shenyang Natl Lab Mat Sci,Greater Bay Joint Div, Shenzhen 518057, Peoples R China 7.City U Shenzhen Futian Res Inst, Shenzhen 518045, Peoples R China
推荐引用方式 GB/T 7714	Duan, F. H.,Lin, Y.,Li, Q.,et al. Hardness-thermal stability synergy in nanograined Ni and Ni alloys: Superposition of nanotwin and low-energy columnar boundary[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,137:123-131.
APA	Duan, F. H..,Lin, Y..,Li, Q..,Luan, J. H..,Lu, J..,...&Li, Y..(2023).Hardness-thermal stability synergy in nanograined Ni and Ni alloys: Superposition of nanotwin and low-energy columnar boundary.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,137,123-131.
MLA	Duan, F. H.,et al."Hardness-thermal stability synergy in nanograined Ni and Ni alloys: Superposition of nanotwin and low-energy columnar boundary".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 137(2023):123-131.