电子束焊接Zr-4合金管在腐蚀工况下产生异常蓝色氧化膜的微观成分和结构分析

Microstructure and Component of Abnormal Blue Oxide Film of Zr-4 Tube by Electron-beam Welding after Auto clave Testing

摘要:

针对电子束焊接后的Zr-4合金管在腐蚀工况下出现的异常蓝色环状氧化膜，使用XPS，EDX，TEM等分析手段研究了异常氧化膜和正常氧化膜的微观成分和结构。结果表明：正常氧化膜是透明的，异常蓝色氧化膜剥落后，也是透明的；异常蓝色氧化膜中Fe含量明显高于正常氧化膜中的Fe含量；Fe在氧化膜中主要是以氧化物Fe203的形式存在，Sn与Zr以SnOz，ZrO2的形式存在。

Abstract:

The abnormal blu e oxide films occurred at the heat-affected zone of zircalloy-4cladding tube af ter electron beam welding,were studied using XPS,EDX,TEM.The resu lts indica te that iron and tin in the a bnormal oxide film exist in the form o f Fe 2 O 3 ,SnO 2 ,and the ratio of Fe to Sn in abnormal blue oxid e film is higher than that of the norma l one.These results will provide the basis of the further researc h.