Electropolishing of Al and Al alloys in AlCl3/trimethylamine hydrochloride ionic liquid

doi:10.1016/j.surfcoat.2017.12.028

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Electropolishing of Al and Al alloys in AlCl3/trimethylamine hydrochloride ionic liquid
	Hou YY(侯媛媛)1,2; Li RQ(李瑞乾)1,2 ; Liang J(梁军)1; Su, Peibo 3; Ju, Pengfei 3; Liang J(梁军)
刊名	Surface and Coatings Technology
	2018
卷号	335 期号:0 页码:72-79
关键词	Electropolishing Al Alcl3/trimethylamine Hydrochloride Ionic Liquid Anti-corrosion
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2017.12.028
英文摘要	We have investigated the electropolishing (EP) of aluminum (Al) and its alloys in an ionic liquid composed of anhydrous aluminum chloride and trimethylamine hydrochloride. The EP mechanism of Al was investigated by linear sweep voltammetry. The optimum conditions for EP of Al and Al alloys including the ionic liquid components, current density and polishing time were systematically explored. Moreover, the microstructure and chemical compositions of Al before and after EP were measured by SEM, AFM, XPS and XRD, respectively. Compared to EP in strong acid solution, EP of Al in this ionic liquid can achieve the equivalent polishing effect with less mass loss. Importantly, the polishing ability of this ionic liquid remains stable even after EP for 50 cycles. The corrosion resistance of electropolished Al is drastically enhanced due to the formation of the compact passive layer on the mirror-like bright surface.
学科主题	材料科学与物理化学
资助项目	空间润滑材料研究组
语种	英语
WOS记录号	WOS:000424720800008
资助机构	National Natural Science Foundation of China (grant no. 51305432) ; Shanghai Rising-Star Program (15QB1401500)
内容类型	期刊论文
源URL	[http://ir.licp.ac.cn/handle/362003/23702]
专题	兰州化学物理研究所_固体润滑国家重点实验室
通讯作者	Liang J(梁军)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Aerosp Equipment Manufacturer, Shanghai 200245, Peoples R China
推荐引用方式 GB/T 7714	Hou YY,Li RQ,Liang J,et al. Electropolishing of Al and Al alloys in AlCl3/trimethylamine hydrochloride ionic liquid[J]. Surface and Coatings Technology,2018,335(0):72-79.
APA	Hou YY,Li RQ,Liang J,Su, Peibo,Ju, Pengfei,&Liang J.(2018).Electropolishing of Al and Al alloys in AlCl3/trimethylamine hydrochloride ionic liquid.Surface and Coatings Technology,335(0),72-79.
MLA	Hou YY,et al."Electropolishing of Al and Al alloys in AlCl3/trimethylamine hydrochloride ionic liquid".Surface and Coatings Technology 335.0(2018):72-79.