摘要
介绍了美国产超级铁素体不锈钢海优管在我国某沿海电厂凝汽器的实际应用情况。结果表明,美国产超级铁素体不锈钢海优管能够应用于海水中,但该材质耐缝隙腐蚀能力较差,在一定条件下(例如管板胀口结合处)会发生明显局部腐蚀破坏,因此现场使用时不能造成缝隙存在。实验室电化学研究结果进一步解释了现场工业应用的现象。
Practical application of Sea-Cure tubes,one kind of super ferritic stainless steel tubes made in American, in condensers of one coastal power plant were introduced. The results showed that Sea-Cure tubes could be used in seawater environment, but the material was less resistant to crevice corrosion, and significant localized corrosion dam- age would occur under certain conditions, such as at tube sheet expansion joints. So narrow crevice should be avoided at field application. The electrochemical research results in laboratory further explained the industrial application phenomenon.
出处
《华北电力技术》
CAS
2013年第9期15-18,25,共5页
North China Electric Power
关键词
超级铁素体不锈钢
凝汽器
换热管
海水
腐蚀
缝隙
super ferritic stainless steel
condenser
heat transfer tube
seawater
corrosion
crevice
