核电厂蒸汽发生器SA213T22传热管表面氧化膜的耐蚀性  

Corrosion Resistance of Oxidation Film on SA213T22 Heat Transfer Tube Surface for Steam Generator in Nuclear Power Plant

作　　者：李巨峰[1] 朱兴华[2] 熊文彬[1] 汪垠 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]华能山东石岛湾核电有限公司,荣成264312 [3]中核能源科技有限公司,北京100193

出　　处：《腐蚀与防护》2016年第7期572-574,612,共4页Corrosion & Protection

摘　　要：人工研制了核电厂蒸汽发生器SA213T22传热管的高温氧化膜,采用SEM、XRD、热重分析法分别对氧化膜厚度、微观形貌、成分和稳定性进行了观察和分析。结果表明:氧化膜具有均匀、完整、无孔隙、稳定性好的特点;经高温氧化及矿物油封闭处理后,SA213T22传热管的耐蚀性得到了显著提高,在不同环境中挂片31个月后,试样均未发生腐蚀,完全满足工程应用的要求。The artificial oxidation film on SA213T22 heat transfer tubes for steam generator in nuclear power plant was studied, the thickness, microstructure, compositions and stabilization of the oxidation film were analyzed by SEM, XRD and thermo gravimetric analysis method, respectively. The results showed that oxidation film had characteristics of homogeneity, integrity, inporosity and good stabilization. The samples were not corroded in different environments for 31 months. The corrosion resistance fully meets the requirements o~ engineering applications.

关 键 词：核电厂 蒸汽发生器SA213T22传热管 氧化膜 腐蚀 

分 类 号：TG174[金属学及工艺—金属表面处理]