Effect of the fungus, Aspergillus niger, on the corrosion behaviour of AZ31B magnesium alloy in artificial seawater

被引：51
|
作者：
Qu, Qing [1 ]
Wang, Lei [1 ]
Li, Lei [2 ]
He, Yue [1 ]
Yang, Min [2 ]
Ding, Zhongtao [1 ]
机构：
[1] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Peoples R China
[2] Yunnan Univ, Lab Conservat & Utilizat Bioresources, Kunming 650091, Peoples R China
来源：
CORROSION SCIENCE | 2015年 / 98卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; Alloy; Polarization; EIS; Microbiological corrosion; MICROBIOLOGICALLY INFLUENCED CORROSION; MICROBIALLY INFLUENCED CORROSION; SULFATE-REDUCING BACTERIA; CARBON-STEEL; MILD-STEEL; INHIBITION; BIOFILM; AZ91; ACCELERATION; RESISTANCE;
D O I：
10.1016/j.corsci.2015.05.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of Aspergillus niger (A. niger) on the corrosion behaviour of AZ31B magnesium alloy in artificial seawater (AS) has been studied. The presence of A. niger posed a threat for AZ31B magnesium alloy. A visible decrease in pH and E-corr vs. SCE was observed in AS with A. niger compared to the sterile AS, and the presence of A. niger was associated with decrease in R-ct and increase i(corr), indicating the corrosion rate was clearly accelerated in the presence of A. niger. Preferential adsorption was located at the corrosion products and substrate interface. Adsorption of A. niger on AZ31B magnesium alloy further promoted the pitting corrosion. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：249 / 259
页数：11
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