Fireside Corrosion of Four Candidate Nickel Base Alloys for Key Components of Advanced Ultra-supercritical Boilers

被引：0

作者：

Li J. ^{[1
]}

Zhou R. ^{[1
]}

Tang L. ^{[1
]}

Li J. ^{[1
]}

Zhang Z. ^{[1
]}

Hou S. ^{[1
]}

Wang B. ^{[1
]}

机构：

[1] National Engineering Research Center of Clean Coal Combustion, Xi'an Thermal Power Research Institute Co., Ltd., Xi'an, 710032, Shaanxi Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2018年 / 38卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Adnvance ultra-supercritical (A-USCSUC); Corrosion behaviours; Fireside corrosion; High sulphur coal; Nickel base alloys;

D O I：

10.13334/j.0258-8013.pcsee.170240

中图分类号：

学科分类号：

摘要：

The fireside corrosion behaviours of four candidate nickel base alloys (including Inconel 740H, Nimonic 263, Alloy 617B and Haynes 282) for key componets components of 700℃ advance ultra-supercritical (A-USC) boliilers exposed 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 the selected 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. © 2018 Chin. Soc. for Elec. Eng.

引用

页码：1504 / 1510

页数：6

共 23 条

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