Effect of Acid Treatment on the High-Temperature Surface Oxidation Behavior of FeCrAlloy Foil Used for Methane Combustion Catalyst Support

详细信息    查看全文

• 作者：Dong Zhang ; Lihong Zhang ; Bin Liang ; Yongdan Li
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2009
• 出版时间：May 20, 2009
• 年：2009
• 卷：48
• 期：10
• 页码：5117-5122
• 全文大小：260K
• 年卷期：v.48,no.10(May 20, 2009)
• ISSN：1520-5045

文摘

The effect of acid treatment on the high-temperature oxidation behavior of Fe−Cr−Al alloy has been examined with oxidation tests and various characterization techniques. Acid treatment effectively improves the stability of the alloy in a high-temperature oxidation environment. After the treatment, the alloy oxidizes at a higher rate in the induction period and a lower rate in the subsequent time period. A passivative oxide layer was determined to be better formed during high-temperature oxidation on the surface of the acid-treated alloy, which suppressed further oxidation. It was observed that the oxidation rate of the alloy at high temperature can be described precisely by the Quadakkers equation.