Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys

doi:10.3390/nano9040546

IMR OpenIR

	Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys
	Zheng, Xiangui 1; Hu, Jian 1,2; Li, Jiongxian 1; Shi, Yinong 1
通讯作者	Shi, Yinong(yinongshi@imr.ac.cn)
	2019-04-01
发表期刊	NANOMATERIALS
ISSN	2079-4991
卷号	9 期号:4 页码:11
摘要	Annealing hardening has recently been found in nanograined (ng) metals and alloys, which is ascribed to the promotion of grain boundary (GB) stability through GB relaxation and solute atom GB segregation. Annealing hardening is of great significance in extremely fine ng metals since it allows the hardness to keep increasing with a decreasing grain size which would otherwise be softened. Consequently, to synthesize extremely fine ng metals with a stable structure is crucial in achieving an ultrahigh hardness in ng metals. In the present work, direct current electrodeposition was employed to synthesize extremely fine ng Ni-Mo and Ni-P alloys with a grain size of down to a few nanometers. It is demonstrated that the grain size of the as-synthesized extremely fine ng Ni-Mo and Ni-P alloys can be as small as about 3 nm with a homogeneous structure and chemical composition. Grain size strongly depends upon the content of solute atoms (Mo and P). Most importantly, appropriate annealing induces significant hardening as high as 11 GPa in both ng Ni-Mo and Ni-P alloys, while the peak hardening temperature achieved in ng Ni-Mo is much higher than that in ng Ni-P. Electrodeposition is efficient in the synthesis of ultrahard bulk metals or coatings.
关键词	electrodeposition nanograined alloy thermal stability annealing hardening hardness
资助者	Ministry of Science & Technology of China ; National Science Foundation of China ; Shenyang National Laboratory for Materials Science
DOI	10.3390/nano9040546
收录类别	SCI
语种	英语
资助项目	Ministry of Science & Technology of China[2017YFA0204401] ; National Science Foundation of China[51231006] ; National Science Foundation of China[ZDYZD201701] ; Shenyang National Laboratory for Materials Science[2016RP05]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000467768800062
出版者	MDPI
引用统计	被引频次：11[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/321006/133368
专题	中国科学院金属研究所
通讯作者	Shi, Yinong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.East China Jiaotong Univ, Sch Mat Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xiangui,Hu, Jian,Li, Jiongxian,et al. Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys[J]. NANOMATERIALS,2019,9(4):11.
APA	Zheng, Xiangui,Hu, Jian,Li, Jiongxian,&Shi, Yinong.(2019).Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys.NANOMATERIALS,9(4),11.
MLA	Zheng, Xiangui,et al."Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys".NANOMATERIALS 9.4(2019):11.