纯铜在湿热海洋大气环境空调外机内部初期腐蚀行为研究
Initial Corrosion Behavior of Copper Inside Air Conditioner Condensers in Humid and Hot Marine Atmospheric Environments
刘淼然 1戴兴学 2揭敢新 3王俊 3彭煌 3李伟华4
作者信息
- 1. 中山大学,珠海 519082;中国电器科学研究院股份有限公司 工业产品环境适应性全国重点实验室,广州 510663
- 2. 威凯检测技术有限公司,广州 510799
- 3. 中国电器科学研究院股份有限公司 工业产品环境适应性全国重点实验室,广州 510663
- 4. 华北水利水电大学,郑州 450046
- 折叠
摘要
本文采用扫描电子显微镜、电化学测试、傅里叶红外光谱等分析测试手段研究了现场实证实验空调外机内部环境中,铜暴露不同时间后的腐蚀行为和腐蚀机理.结果表明空调外机内部服役环境的严酷度明显小于外部自然大气环境.样品铜暴露7～11个月之后,铜表面致密的保护性腐蚀产物Cu2O发生转变,导致样品表面腐蚀产物的保护性下降,样品的腐蚀速率呈现先下降后升高的趋势.
Abstract
This paper uses scanning electron microscopy,electrochemical testing and Fourier transform infrared spectroscopy to study the corrosion behavior and mechanism of copper exposed for different periods inside the outdoor units of air conditioner of on-site empirical experiments.The results indicate that the severity of the internal service environment of the air conditioner unit is significantly lower than that of the external natural atmospheric environment.After 7-11 months of exposure to the copper,the dense protective corrosion product Cu2O on the copper surface undergoes a transformation,leading to a decrease in the protective properties of the corrosion product.The corrosion rate of the sample shows a trend of first decreasing and then increasing.
关键词
纯铜/空调外机/海洋大气环境/腐蚀速率Key words
pure copper/air conditioner external unit/marine atmospheric environment/corrosion rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据