Corrosion and pitting behavior of pure aluminum 1060 exposed to Nansha Islands tropical marine atmosphere

被引：7

作者：

PENG C. ^{[1
,2
]}

LIU Y.-W. ^{[2
,3
]}

GUO M.-X. ^{[1
,2
]}

GU T.-Z. ^{[1
,2
]}

WANG C. ^{[2
,3
]}

WANG Z.-Y. ^{[2
,3
]}

SUN C. ^{[2
,3
]}

机构：

[1] School of Materials Science and Engineering, University of Science and Technology of China, Shenyang

[2] Institute of Metal Research, Chinese Academy of Sciences, Shenyang

[3] Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station, Shenyang

来源：

Transactions of Nonferrous Metals Society of China (English Edition) | 2022年 / 32卷 / 02期

基金：

中国国家自然科学基金;

关键词：

aluminum; atmospheric corrosion; field exposure; Nansha Islands; pitting corrosion;

D O I：

10.1016/S1003-6326(22)65806-0

中图分类号：

学科分类号：

摘要：

The corrosion and pitting behavior of pure aluminum 1060 exposed to Nansha Islands marine atmosphere for 34 months was investigated based on mass loss measurement, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and electrochemical impedance spectroscopy (EIS). The results indicated that serious pitting corrosion occurred on the surfaces of pure aluminum. The corrosion rate after exposure for 13 months was approximately 1.28 g/(m2·a). The XPS results showed that the corrosion products were Al2O3, Al(OH)3, and AlCl3. Moreover, the corrosion product layer was more protective than the native oxide film, and the protectiveness first increased and then decreased. Finally, the shape of the pits was evaluated using statistical analysis. © 2022 The Nonferrous Metals Society of China

引用

页码：448 / 460

页数：12

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