2024铝合金在醋酸钾除冰液中的腐蚀电化学行为

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of the Brazilian Chemical Society Pub Date : 2023-07-24 DOI:10.21577/0103-5053.20230024

Lin Xiuzhou, Zhuo Wei, Yang Feng, Yang Han, P. Qiang, Mei Yongjun, Wang Yuhao, Dou Baojie

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引用次数: 1

摘要

研究了飞机2024铝合金在不同浓度的醋酸钾型流体中的低温电化学腐蚀行为，结果表明，腐蚀介质首先对2024铝合金的腐蚀性产生一定的影响。然而，合金的腐蚀速率随着腐蚀介质浸泡时间的延长而降低，这是由于腐蚀产物层的保护作用，它阻碍了腐蚀溶液的侵蚀。-5℃时电化学噪声测量的时域分析表明，合金在浸液初期出现均匀腐蚀，浸液中期出现一般腐蚀，浸液中后期以点蚀为主。

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Corrosion Electrochemical Behavior of 2024 Aluminum Alloy in Potassium Acetate Deicing Fluid

The low-temperature electrochemical corrosion behavior of aircraft 2024 aluminum alloy was investigated in different concentrations of potassium-acetate-type fluid, and the results showed that the corrosion medium initially impacted some corrosiveness on the 2024 aluminum alloy. However, the corrosion rate of the alloy decreased with prolonged immersion in the corrosion medium, and this was attributed to the protective effect of the corrosion products layer, which impeded the attack by the aggressive solution. Time-domain analysis of electrochemical noise measurements at -5 °C revealed the occurrence of uniform corrosion on the alloy at the initial stages of immersion, general corrosion at the middle stages of immersion, and a pitting-dominated corrosion type from the middle to late stages of immersion.

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来源期刊

Journal of the Brazilian Chemical Society 化学-化学综合

CiteScore

2.90

自引率

7.10%

发文量

审稿时长

3.4 months

期刊介绍： The Journal of the Brazilian Chemical Society embraces all aspects of chemistry except education, philosophy and history of chemistry. It is a medium for reporting selected original and significant contributions to new chemical knowledge.