高速列车用铸造AlSi7Mg合金耐盐雾腐蚀性能研究  

Salt Spray Corrosion Resistance of Cast AlSi7Mg Alloy for High-Speed Train

作　　者：赵丽娟 ZHAO Li-Juan(Changzhou Institute of Industry Technology,Changzhou 213164,Jiangsu,China)

机构地区：[1]常州工业职业技术学院,江苏常州213164

出　　处：《铸造》2021年第10期1200-1203,共4页Foundry

摘　　要：选取高速列车用铸造AlSi7Mg铝合金进行中性盐雾试验,探讨了其在实际应用中的盐雾腐蚀行为。结果表明,盐雾腐蚀过程中试样表面出现点蚀特征,试样表面覆盖层腐蚀产物主要有Al、Si和O,致密的氧化膜具备稳定的化学特性,隔绝了盐雾腐蚀反应,起到保护材料的作用。The salt spray corrosion behavior of cast AlSi7Mg aluminum alloy for high-speed train was studied.The results show that the corrosion products of the sample surface are Al,Si and O.The dense oxide film has stable chemical properties,which insulates the salt spray corrosion reaction and plays a role in protecting the material.

关 键 词：高速列车 AlSi7Mg铝合金 盐雾腐蚀 

分 类 号：TG146.21[一般工业技术—材料科学与工程]