中国电机工程学报2018，Vol.38Issue(5)：1504-1510,后插24,8.DOI:10.13334/j.0258-8013.pcsee.170240
A-USC锅炉关键部件四种候选镍基合金烟气腐蚀行为研究
Fireside Corrosion of Four Candidate Nickel Base Alloys for Key Components of Advanced Ultra-supercritical Boilers
摘要
Abstract
The fireside corrosion behaviours of four candidate nickel base alloys (including Inconel 740H, Nimonic 263, Alloy 617Band Haynes 282) for key components of 700℃ advance ultra-supercritical (A-USC) boilers exposed to the simulated flue/ash environments of a high sulfur domestic coal at 750℃ were investigated. The results show that the corrosion resistance of theselected nickel base alloys ranging from high to low can be concluded as: Inconel 740H, Nimonic 263, Alloy 617B, Haynes 282. The relatively higher Cr, Al, Ti contents may be responsible to the best corrosion resistance of Inconel 740H. The volatile corrosion products containing S and Mo resulted in poor corrosion resistance of Alloy 617B and Haynes 282. However the worst corrosion resistance of Haynes 282 was noticed due to the relatively low Cr content. Related fireside corrosion mechanism was discussed.关键词
先进超超临界/镍基合金/烟气腐蚀/高硫煤/腐蚀行为Key words
advance ultra-supercritical (A-USC)/nickel base alloys/fireside corrosion/high sulphur coal/corrosion behaviours分类
通用工业技术引用本文复制引用
李江,周荣灿,唐丽英,李季,张周博,侯淑芳,王博涵..A-USC锅炉关键部件四种候选镍基合金烟气腐蚀行为研究[J].中国电机工程学报,2018,38(5):1504-1510,后插24,8.基金项目
国家自然科学基金项目(U1361201). Project Supported by National Natural Science Foundation of China (U1361201). （U1361201）
