Microstructure Evolution Characteristics of Industrial Electrolytic Nickel Deposits

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	Microstructure Evolution Characteristics of Industrial Electrolytic Nickel Deposits
	Xu Yangtao 1,2,3; Wang Chao 2; Liu Zhijian 2; Lu Jianbo 3; Su Yujuan 3
刊名	RARE METAL MATERIALS AND ENGINEERING
	2022-04-01
卷号	51 期号:4 页码:1462-1469
关键词	industrial electrolytic nickel EBSD microstructure preferred orientation grain boundaries
ISSN号	1002-185X
英文摘要	This work studied the characteristics of the microstructure of industrial electrolytic nickel deposits changing with deposition time. Using XRD, SEM, EBSD and other analysis methods, the preferred orientation, microstructure and characteristic grain boundary distribution of electrolytic nickel plate with the deposition time were studied. The results show that the crystals on the surface of the electrodeposited nickel plate mainly grow in the direction perpendicular to the (200) plane, the cross-section shows the (111) and (200) double preferred orientations, and the crystal growth method is lateral growth. The surface and the cross-section show different microstructures. The surface morphology changes from a pyramid shape to a cell shape and the growth mechanism changes from spiral dislocation-driven growth to atomic aggregation and accumulation. The cross-sectional morphology of the nickel plate is always a lamellar structure at each stage. The cross-section of the deposited layer is mainly high-angle grain boundaries and a large number of Sigma 3 twin grain boundaries. In the stable growth process, the proportion of large-angle grain boundaries gradually decreases as the deposition progresses, nevertheless the relative frequency of Sigma 3 grain boundaries gradually increases, but they will all be affected by changes in the environment of the electrolytic cell. In the cross-section along the growth direction, the electrolytic nickel plate mainly shows the fiber texture of <001> direction, and a large number of Sigma 3 twin boundaries affect the orientation of the deposited layer. By increasing the ratio of Sigma 3 twin boundaries or selecting the electrolytic nickel corresponding to the higher frequency of Sigma 3 twin boundaries, electrolytic nickel with better strength and plasticity can be obtained. The evolution law of the electrolytic nickel deposition layer has been clarified, which means that the micro-control of the electrolytic nickel organization can be carried out in the later research or the guidance of industrial production, and the customized production of electrolytic nickel under industrial conditions can be realized.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000799378800043
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158868]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Lanzhou Univ Technol, Baiyin Novel Mat Res Inst, Baiyin 730900, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 3.State Key Lab Comprehens Utilizat Nickel & Cobalt, Jinchang 737100, Peoples R China;
推荐引用方式 GB/T 7714	Xu Yangtao,Wang Chao,Liu Zhijian,et al. Microstructure Evolution Characteristics of Industrial Electrolytic Nickel Deposits[J]. RARE METAL MATERIALS AND ENGINEERING,2022,51(4):1462-1469.
APA	Xu Yangtao,Wang Chao,Liu Zhijian,Lu Jianbo,&Su Yujuan.(2022).Microstructure Evolution Characteristics of Industrial Electrolytic Nickel Deposits.RARE METAL MATERIALS AND ENGINEERING,51(4),1462-1469.
MLA	Xu Yangtao,et al."Microstructure Evolution Characteristics of Industrial Electrolytic Nickel Deposits".RARE METAL MATERIALS AND ENGINEERING 51.4(2022):1462-1469.