铝合金窗框腐蚀原因  

Reason for corrosion of aluminum alloy window frames

作　　者：盖跃华 封兵权 骆发权 宋大伟 李朝辉 GAI Yuehua;FENG Bingquan;LUO Faquan;SONG Dawei;LI Zhaohui(Shenzhen Quality Technology Supervision and Evaluation Firm Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市质鉴质量技术监督评鉴事务所有限公司,深圳518000

出　　处：《理化检验(物理分册)》2025年第2期57-60,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：某铝合金窗框在建筑施工完成后,其表面出现白色结晶腐蚀产物。采用宏观观察、化学成分分析、涂层厚度测量、红外光谱分析、扫描电镜及能谱分析、X射线衍射分析、金相检验等方法分析了窗框腐蚀的原因。结果表明:由于施工不当,铝合金窗框表面涂层受损,酸雨及潮湿环境中含有的(SO_(4))^(2−)、Cl^(−)、(OH)^(−)等腐蚀性离子使铝合金窗框发生腐蚀。After the construction of a certain aluminum alloy window frame,white crystalline corrosion products appeared on its surface.The cause of window frame corrosion was analyzed using macroscopic observation,chemical composition analysis,coating thickness measurement,infrared spectroscopy analysis,scanning electron microscopy and energy spectrum analysis,X-ray diffraction analysis,metallographic examination.The results show that due to improper construction,the surface coating of the aluminum alloy window frame was damaged,and corrosive ions such as(SO_(4))^(2−),Cl^(−),(OH)^(−)were present in acid rain and humid environments,ultimately led to corrosion of the aluminum alloy window frame.

关 键 词：铝合金窗框 白色结晶 涂层 酸雨 腐蚀 

分 类 号：TB31[一般工业技术—材料科学与工程] TG115.2[金属学及工艺—物理冶金]