Recent Progress on Atmospheric Corrosion of Field-Exposed Magnesium Alloys

IF 2.6 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Metals Pub Date : 2024-09-02 DOI:10.3390/met14091000

Mengqi Wang, Lihui Yang, Hao Liu, Xiutong Wang, Yantao Li, Yanliang Huang

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Abstract

It is well known that the poor corrosion resistance of magnesium alloys is a key factor limiting their application. Field exposure is the most reliable means to evaluate the atmospheric corrosion performance of magnesium alloys. This article reviews the field exposure corrosion behavior of magnesium alloys in typical atmospheric environments (including the marine atmosphere, industrial atmosphere, etc.) in recent years. According to the literature review, it was found that there are significant regional differences in the atmospheric corrosion behavior of magnesium alloys, which is the result of the coupling of multiple factors in the atmospheric environment. By investigating the corrosion rate and corrosion products of different types of magnesium alloys in different environments, the corrosion mechanism of magnesium alloys in different environments was summarized. Specifically, environmental parameters such as atmospheric temperature, relative humidity, CO2, and chloride ion deposition rates in the marine atmospheric environment can affect the corrosion behavior of magnesium alloys. The corrosion of magnesium alloys in different industrial atmospheric environments is mainly affected by atmospheric temperature and relative humidity, as well as atmospheric pollutants (such as SO2, CO2, NO2) and dust. This review provides assistance to the development of new corrosion-resistant magnesium alloys.

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现场暴露镁合金大气腐蚀的最新进展

众所周知，镁合金的耐腐蚀性差是限制其应用的一个关键因素。现场暴露是评估镁合金大气腐蚀性能的最可靠方法。本文回顾了近年来镁合金在典型大气环境（包括海洋大气、工业大气等）中的现场暴露腐蚀行为。根据文献综述发现，镁合金的大气腐蚀行为存在显著的区域差异，这是大气环境中多种因素耦合作用的结果。通过研究不同类型镁合金在不同环境下的腐蚀速率和腐蚀产物，总结了镁合金在不同环境下的腐蚀机理。具体来说，海洋大气环境中的大气温度、相对湿度、二氧化碳和氯离子沉积率等环境参数会影响镁合金的腐蚀行为。镁合金在不同工业大气环境中的腐蚀主要受大气温度和相对湿度以及大气污染物（如二氧化硫、二氧化碳、二氧化氮）和灰尘的影响。本综述有助于开发新的耐腐蚀镁合金。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metals MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

4.90

自引率

13.80%

发文量

1832

审稿时长

1.5 months

期刊介绍： Metals (ISSN 2075-4701) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Metals provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of metals.