Influence of sodium borate concentration on properties of anodic coatings obtained by micro arc oxidation on magnesium alloys

被引：80
作者：
Zhang, R. F. [1 ,2 ]
Zhang, S. F. [1 ,2 ]
Shen, Y. L. [1 ,2 ]
Zhang, L. H. [1 ,2 ]
Liu, T. Z. [1 ,2 ]
Zhang, Y. Q. [3 ]
Guo, S. B. [3 ]
机构：
[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Surface Engn, Nanchang 330013, Jiangxi, Peoples R China
[2] Jiangxi Sci & Technol Normal Univ, Sch Mat Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China
[3] Hunan Univ Sci & Technol, Xiangtan 411201, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 17期
基金：
中国国家自然科学基金;
关键词：
Magnesium alloy; Micro arc oxidation; Electrolyte; Sodium borate; PLASMA ELECTROLYTIC OXIDATION; PHYTIC ACID; CORROSION-RESISTANCE; ELECTROCHEMICAL-BEHAVIOR; PURE MAGNESIUM; FILM FORMATION; MG ALLOY; AZ91D; GROWTH; MAO;
D O I：
10.1016/j.apsusc.2012.03.088
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The influence of sodium borate concentration on the formation and properties of anodic coatings obtained by micro arc oxidation (MAO) on magnesium alloys was systematically studied in an alkaline solution with addition of 0-40 g/L sodium borate. It is shown that sodium borate can decrease the solution conductivity, take part in the coating formation and increase the coating thickness. With the increase of sodium borate concentration, the boron content in the coatings increases in the range of 10-20 g/L but decreases within the range of 20-40 g/L. Sodium borate cannot further improve the corrosion resistance attributed to the development of porous or rough anodic coatings. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：6602 / 6610
页数：9
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