南方科技大学知识苑(SUSTech KC): Mechanism study of electropolishing from the perspective of etching isotropy

题名	Mechanism study of electropolishing from the perspective of etching isotropy
作者	Yi，Rong; Ji，Jianwei; Zhan，Zejin; Deng，Hui
通讯作者	Deng，Hui
发表日期	2022-07-01
DOI	10.1016/j.jmatprotec.2022.117599
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 影响因子和分区
ISSN	0924-0136
EISSN	1873-4774
卷号	305
摘要	Electropolishing, as a damage-free and highly efficient surface finishing method, has been widely used for finishing of metal components. In this study, the electropolishing mechanism of tungsten in the electrolyte with HSO and CHOH was investigated from the perspective of etching isotropy. The anodic dissolution behavior of tungsten demonstrated that anisotropic and isotropic etching occurred under the activation polarization and mass transfer polarization, respectively. The evolution of surface morphology, roughness, and electric current density during electropolishing has been experimentally investigated and analyzed. According to the changes in surface morphology and current density, there was a transformation from anisotropic etching to isotropic etching during the electropolishing due to the time-consuming accumulation of reactive products. The application of a pulse power supply with a duty cycle of 10% resulted in a rough surface on tungsten due to the mass transfer polarization being inhibited. Similar results were also obtained in the electrolyte with 2 wt% NaOH. The presented findings experimentally demonstrate the importance of the isotropic etching mode for electropolishing, which is of great value for further revealing the electropolishing mechanism.
关键词	Electrochemical etching Electropolishing Etching isotropy Roughness
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[52005243];National Natural Science Foundation of China[52035009];
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:000796613700003
出版者	ELSEVIER SCIENCE SA
EI入藏号	20221611987126
EI主题词	Anisotropy ; Electric power systems ; Electrochemical etching ; Electrolytes ; Electrolytic polishing ; Mass transfer ; Morphology ; Polarization ; Sodium hydroxide ; Surface morphology ; Tungsten
EI分类号	Tungsten and Alloys:543.5 ; Mass Transfer:641.3 ; Electric Batteries and Fuel Cells:702 ; Electric Power Systems:706.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951
ESI学科分类	MATERIALS SCIENCE
Scopus记录号	2-s2.0-85128286219
来源库	Scopus
引用统计	被引频次[WOS]：13
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/333587
专题	工学院_机械与能源工程系
作者单位	Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,No. 1088, Xueyuan Road, Guangdong,518055,China
第一作者单位	机械与能源工程系
通讯作者单位	机械与能源工程系
第一作者的第一单位	机械与能源工程系
推荐引用方式 GB/T 7714	Yi，Rong,Ji，Jianwei,Zhan，Zejin,et al. Mechanism study of electropolishing from the perspective of etching isotropy[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2022,305.
APA	Yi，Rong,Ji，Jianwei,Zhan，Zejin,&Deng，Hui.(2022).Mechanism study of electropolishing from the perspective of etching isotropy.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,305.
MLA	Yi，Rong,et al."Mechanism study of electropolishing from the perspective of etching isotropy".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 305(2022).