Investigation of the inhibition effect of the environmentally friendly inhibitor sodium alginate on magnesium alloy in sodium chloride solution

被引：44
|
作者：
Dang, N. [1 ]
Wei, Y. H. [1 ,2 ]
Hou, L. F. [1 ]
Li, Y. G. [1 ]
Guo, C. L. [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Lvliang Univ, Lishi 033000, Shanxi, Peoples R China
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2015年 / 66卷 / 11期
关键词：
CORROSION INHIBITION; MILD-STEEL; HYDROCHLORIC-ACID; SULFURIC-ACID; MG; RESISTANCE; BEHAVIOR; AZ91; DERIVATIVES; ALUMINUM;
D O I：
10.1002/maco.201408141
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion inhibition and adsorption behavior of sodium alginate on AZ31 magnesium alloy in 3.5wt% sodium chloride solution is investigated. The results show that sodium alginate can effectively inhibit the corrosion of AZ31 magnesium alloy. With increasing sodium alginate concentration, the inhibition efficiency initially increases and then decreases. It reaches a maximum of 90.00% at a sodium alginate concentration of 500 ppm. The inhibition is due to adsorption of sodium alginate on the bare magnesium alloy surface, where it mixes with magnesium hydroxide to form a more continuous and compact film, which retards the corrosion of the alloy.
引用
收藏
页码：1354 / 1362
页数：9
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