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.
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017-07-31
卷号	701 页码:196-202
关键词	Electrodeposition Nickel Bimodal Microstructure Twins Spatial Distribution Mechanical Property
ISSN号	0921-5093
DOI	10.1016/j.msea.2017.06.063
文献子类	Article
英文摘要	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.
分类号	一类
URL标识	查看原文
WOS关键词	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
语种	英语
WOS记录号	WOS:000406989000021
资助机构	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)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/70037]
专题	力学研究所_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.