Effect of water vapour on the oxidation of Fe-13Cr-5Ni martensitic alloy at 973 K

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• 作者：L. Liu^a ; Z.-G. Yang^a ; ^{zgyang@tsinghua.edu.cn} ; C. Zhang^a ; M. Ueda^b ; K. Kawamura^b ; T. Maruyama^b
• 关键词：A. Alloy ; C. Oxidation ; C. Selective oxidation
• 刊名：Corrosion Science
• 出版年：2012
• 期刊代码：28_0010938x
• 类别：ch
• 出版时间：July, 2012
• 卷：60
• 期：Complete
• 页码：90-97
• 文件大小：1968 K

摘要

Effect of water vapour on oxidation of Fe-13Cr-5Ni martensitic alloy at 973 K was investigated. Water vapour accelerated oxidation rate by more than an order of magnitude. The scale formed in Ar-21%O₂ exhibited a duplex structure consisting of Fe₂O₃ outer scale and Cr-rich corundum type inner scale. Selective oxidation of Cr was hindered in Ar-21%O₂-15%H₂O, therefore Fe-rich (Fe, Cr, Ni)₃O₄ formed with Fe₂O₃ and Fe₃O₄ outer scale. The different structures and behaviour of Ni enrichment at alloy/scale interface were discussed. The oxidation of this alloy was compared with prior studies of Fe-Cr-Ni austenitic alloys.