Effect of Alloy Composition and Exposure Conditions on the Selective Oxidation Behavior of Ferritic Fe–Cr and Fe–Cr–X Alloys
Effect of Alloy Composition and Exposure Conditions on the Selective Oxidation Behavior of Ferritic Fe–Cr and Fe–Cr–X Alloys
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DOI：
10.1007/s11085-010-9215-5
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发表时间：
2010-09
影响因子：
2.2
通讯作者：
G. H. Meier;Keeyoung Jung;N. Mu;N. M. Yanar;F. Pettit;J. Pirón Abellán;T. Olszewski;L. Nieto Hierro-L.-N
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文献类型：
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作者：
G. H. Meier;Keeyoung Jung;N. Mu;N. M. Yanar;F. Pettit;J. Pirón Abellán;T. Olszewski;L. Nieto Hierro-L.-N
研究了铁素体马氏体Fe-Cr基合金在不同氧燃烧温度下暴露于O_2、CO_2和H_2O混合气体中的选择性氧化行为。本文首先根据实验和经典的瓦格纳模型计算，讨论了简单二元Fe-Cr合金在氧气或空气中形成连续外氧化铬皮所需的Cr含量。研究了暴露环境和Cr含量对Fe-Cr合金选择性氧化的影响。最后，所产生的影响，合金添加硅，通常存在于各种集团的市售铁素体钢，进行了说明。讨论比较了简单的二元和三元Fe-Cr基模型合金上的氧化皮的形成与几个市售的铁素体钢。
Selective oxidation behavior of ferritic martensitic Fe–Cr base alloys, exposed in various atmospheres containing combinations of O2, CO2, and H2O, were studied at various temperatures relevant to oxy-fuel combustion. This paper begins with a discussion of the required Cr content to form a continuous external chromia scale on a simple binary Fe–Cr alloy exposed in oxygen or air based on experiments and calculations using the classic Wagner model. Then, the effects of the exposure environment and Cr content on the selective oxidation of Fe–Cr alloys are evaluated. Finally, the effects produced by alloying additions of Si, commonly present in various groups of commercially available ferritic steels, are described. The discussion compares the oxide scale formation on simple binary and ternary Fe–Cr base model alloys with that on several commercially available ferritic steels.