Electrochemical Corrosion of Magnesium Alloy AZ31 in NaCl Solutions After Rolling

被引：1

作者：

Przondziono, Joanna ^{[1
]}

Hadasik, Eugeniusz ^{[1
]}

Walke, Witold ^{[2
]}

Szala, Janusz ^{[1
]}

Wieczorek, Jakub ^{[1
]}

Basiaga, Marcin ^{[2
]}

机构：

[1] Silesian Tech Univ, Fac Mat Engn & Met, 8 Krasinskiego St, PL-40019 Katowice, Poland

[2] Silesian Tech Univ, Fac Biomed Engn, Roosevelta 40, PL-41800 Zabrze, Poland

来源：

INNOVATIONS IN BIOMEDICAL ENGINEERING | 2019年 / 925卷

关键词：

Magnesium Alloy AZ31; Rolling; Electrochemical corrosion; SEM; EIS; BEHAVIOR; MICROSTRUCTURE; RESISTANCE; TESTS; AZ91; MG;

D O I：

10.1007/978-3-030-15472-1_30

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The purpose of this study was to evaluate the electrochemical corrosion resistance of magnesium alloy AZ31 after rolling. Corrosion tests were conducted in NaCl solutions containing various concentrations of chloride ions (0.01-2 M NaCl). Potentiodynamic tests were conducted to obtain anodic polarisation curves. Immersion tests were conducted over periods of 1-5 days. The microstructure of AZ31 was examined by scanning electron microscopy (SEM) after the immersion tests. Electrochemical impedance spectroscopy (EIS) was applied to evaluate the electrochemical phenomena occurring at the surface of the tested alloy. Geometrical features of the AZ31 alloy surface were also measured after the corrosion tests. The results of all of the tests carried out demonstrate a clear deterioration in the corrosion properties of magnesium alloy AZ31 with the increase in the molar concentration of the NaCl solution. Irrespective of the molar concentration of the NaCl solution, pitting corrosion on the surface of the tested alloy was observed.

引用

页码：278 / 292

页数：15

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