Electrochemical and Corrosion Properties of Aluminum Brass in Artificial Seawater

被引：0
|
作者：
Ju, Hong [1 ]
Sun, Can [1 ]
Li, Xia [1 ]
Liu, Yunfei [1 ]
Chen, Jiejing [1 ]
Ding, Li [1 ]
机构：
[1] China Univ Petr, Coll Mech & Elect Engn, Qingdao 266580, Peoples R China
来源：
MATERIALS SCIENCE-MEDZIAGOTYRA | 2017年 / 23卷 / 04期
基金：
中国国家自然科学基金;
关键词：
desalination; corrosion; electrochemical measurement; SEM; chloride ion; SOLAR DESALINATION; TECHNOLOGIES; BEHAVIOR;
D O I：
10.5755/j01.ms.23.4.17170
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behavior and mechanism of aluminum brass (HA177-2) in artificial seawater were investigated using electrochemical measurement, Scanning Electron Microscope (SEM) and Energy Dispersive X-ray spectroscopy (EDX) analysis. The electrochemical results revealed that the corrosion of HA177-2 in the desalination artificial seawater depended on chloride ion concentrations, displaying a maximum with a chloride ion concentration of 2.3 wt.%. Corrosion rate of HA177-2 initial increased and subsequently decreased with the increasing of chloride ion concentration. Moreover, corrosion of HA177-2 becomes more severe when temperature rises. The above results obtained by electrochemical impedance spectroscopy and potentiodynamic polarization tests were in a good agreement. The results of SEM and EDX methods showed selective localized corrosion appeared remarkably on the surface of HA177-2.
引用
收藏
页码：322 / 327
页数：6
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