Effect of potassium fluoride on the in-situ sealing pores of plasma electrolytic oxidation film on AM50 Mg alloy

被引：34
|
作者：
Liu, Feng [1 ]
Yu, Juan [2 ]
Song, Yingwei [1 ]
Shan, Dayong [1 ]
Han, En-Hou [1 ]
机构：
[1] Chinese Acad Sci, Natl Engn Ctr Corros Control, Inst Met Res, Shenyang 110016, Peoples R China
[2] Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2015年 / 162卷
基金：
中国国家自然科学基金;
关键词：
Alloy; Oxides; Plasma deposition; Corrosion; MAGNESIUM ALLOY; CORROSION BEHAVIOR; LIGHTWEIGHT MATERIALS; MICROSTRUCTURE; COATINGS; SILICATE; AZ31; MAO; RESISTANCE; ADDITIVES;
D O I：
10.1016/j.matchemphys.2015.06.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of potassium fluoride (KF) on the in-situ sealing pores of plasma electrolytic oxidation (PEO) film on AM50 Mg alloy has been investigated using a stereo zoom optical microscope, scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS). The films formed in the solutions with and without KF were compared. The sketch map for the formation process of in-situ sealing pores was established. The in-situ sealing pore PEO film can be obtained in the solution with KF, while the PEO film with open pores is obtained in the solution without KF. It indicates that the addition of KF plays a key role in the formation of in-situ sealing pores. Moreover, KF can change the initial film and promote the film growth rate. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：452 / 460
页数：9
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