High Temperature Corrosion Behaviors of the Superheater Materials

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• 作者：Wen-Wen Luo^a ; ^{luowenwen@ncepu.edu.cn} ; Zong-De Liu^a ; ^b ; Yong-Tian Wang^a ; Rong-Juan Yang^a
• 关键词：High-temperature corrosion ; the superalloy C22 ; TP347H ; 20#steel
• 刊名：Procedia Engineering
• 出版年：2012
• 期刊代码：P56_18777058
• 类别：et
• 出版时间：2012
• 卷：36
• 期：Complete
• 页码：212-216
• 文件大小：331 K

摘要

The high temperature corrosion tests are performed on 20#steel, TP347H and superalloy C22. The high temperature corrosion behaviors of these superheater materials in the synthetic salt containing 80wt-%KCl+20wt-%K2SO4 have been investigated under the oxidizing atmosphere at a temperature of 650掳C for 218 hours. For comparison, the column diagram has been obtained by mass loss. The scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS) is used to characterize the surface morphology and compositions of the corrosion products. The results have shown that the superalloy C22 exhibits the high corrosion resistance.