Enhanced tensile ductility and strength of electrodeposited ultrafine-grained nickel with a desired bimodal microstructure

doi:10.1016/j.msea.2017.06.063

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	Enhanced tensile ductility and strength of electrodeposited ultrafine-grained nickel with a desired bimodal microstructure
	Zhang, Qian; Liu, Ying; Liu, Yongsheng; Ren, Yanhong; Wu, Yanxia; Gao, Zhipeng; Wu XL(武晓雷); Han, Peide; Liu, Y (reprint author), Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China.
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017-07-31
卷号	701 页码:196-202
ISSN	0921-5093
摘要	This work aims to use surfactant-assisted direct current electrodeposition technique to prepare four types of bimodal nickel, under different current densities. Bimodal Ni is obtained with different grain size and spatial distribution of CG and UFG areas showing a big disparity in mechanical properties. As a result of small population of coarse-grained surrounded by quite a lot of ultrafine-grained forming a unique shell-and-core bimodal structure, bimodal one present the best comprehensive mechanical properties with an ultrahigh tensile strength (similar to 847 MPa) and a considerable plastic strain (similar to 16.7%). Deformation initial, bimodal structures display more positive strain hardening to meaningful strains than unimodal structure of UFG and CG. Particularly bimodal one work-hardening rate is the highest thanks to its structure (UFG occupy 76.7% in total number fraction) and the distribution of growth twins. Growth twins in this article are referred to Sigma 3(111) coherent twins playing an important role in improving high strength, enhancing uniform plastic deformation ability.
关键词	Electrodeposition Nickel Bimodal Microstructure Twins Spatial Distribution Mechanical Property
DOI	10.1016/j.msea.2017.06.063
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000406989000021
关键词[WOS]	SEVERE PLASTIC-DEFORMATION ; NANOSTRUCTURED METALS ; MECHANICAL-PROPERTIES ; ULTRAHIGH STRENGTH ; SIZE DISTRIBUTION ; COPPER ; NANOPILLARS ; NANOSCALE ; TWINS
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	National Natural Science Foundation of China(51371123) ; National Natural Science Foundation of Shanxi Province(2014011002) ; Research Fund for the Doctoral Program of Higher Education of China(20131402110003)
课题组名称	LNM材料介观力学性能的表征
论文分区	一类
力学所作者排名	5+
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/70037
专题	非线性力学国家重点实验室
通讯作者	Liu, Y (reprint author), Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Qian,Liu, Ying,Liu, Yongsheng,et al. Enhanced tensile ductility and strength of electrodeposited ultrafine-grained nickel with a desired bimodal microstructure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,701:196-202.
APA	Zhang, Qian.,Liu, Ying.,Liu, Yongsheng.,Ren, Yanhong.,Wu, Yanxia.,...&Liu, Y .(2017).Enhanced tensile ductility and strength of electrodeposited ultrafine-grained nickel with a desired bimodal microstructure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,701,196-202.
MLA	Zhang, Qian,et al."Enhanced tensile ductility and strength of electrodeposited ultrafine-grained nickel with a desired bimodal microstructure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 701(2017):196-202.

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