蒸汽发生器用690TT合金的组织结构和腐蚀性能  

Microstructure and Corrosion Properties of 690TT Alloy Used for Steam Generator

作　　者：龚正春[1] 孙永立[1] 孔繁革[1] 李振忠[1] 赵登志[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司材料研究所,哈尔滨150046

出　　处：《动力工程》2003年第4期2592-2597,共6页Power Engineering

摘　　要：蒸汽发生器 ( SG)管子破坏的最主要原因是一次侧的应力腐蚀裂纹 SCC( ID) ,二次侧的应力腐蚀裂纹 SCC( OD)或晶间腐蚀 ( IGA)也是管子破坏的主要原因 ,总的说来 ,腐蚀问题是导致 80 %以上管子破损的原因。对 690 TT合金的应力腐蚀和晶间腐蚀进行了试验 ,另外对其组织及断口等也进行了分析。图 7表 2参 1Most main reason of steam generator tube destroy is the stress corrosion crack of first side. The stress corrosion crack or intercrystalline corrosion of second side are also the main reason of tube destroy. To sum up, the reason of more than 80 percent tube destroy is corrosion crack. The stress corrosion and intercrystalline corrosion of 690TT alloy are tested in the article. Besides it's organization and fracture etc are also analysed. Figs 7, tables 2 and refs 15.

关 键 词：蒸汽发生器 690TT合金 腐蚀 组织结构 核电站 

分 类 号：TL349[核科学技术—核技术及应用]