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The Effect of Microstructure on Steam Oxidation Behavior of the Fe–20Cr–35Ni–2.5Nb (at.%) Steel at 1073 K
Oxidation of Metals ( IF 2.1 ) Pub Date : 2021-07-22 , DOI: 10.1007/s11085-021-10050-x
Mitsutoshi Ueda 1 , Jumpei Ohbayashi 1 , Tatsumi Yao 1 , Masao Takeyama 2
Affiliation  

This paper focuses on the effect of microstructure change due to the addition of alloying elements (W or Ti) on steam oxidation behavior of the Fe–20Cr–35Ni–2.5Nb (at.%) steel at 1073 K. Steam oxidation behavior of the steels strongly depended on the formation of continuous Cr2O3 layer. Microstructure of the steels was changed by the addition of alloying elements. A high density of fine precipitates in the steels gave a better steam oxidation resistance. Heterogeneous interface between IMCs and the matrix may play important role of nucleation and diffusion in the matrix, resulting in the rapid formation of the continuous Cr2O3 layer.



中文翻译:

微观结构对 Fe-20Cr-35Ni-2.5Nb (at.%) 钢在 1073 K 时蒸汽氧化行为的影响

本文重点研究了合金元素(W 或 Ti)的加入对 Fe-20Cr-35Ni-2.5Nb (at.%) 钢在 1073 K 时的蒸汽氧化行为的影响。钢强烈依赖于连续 Cr 2 O 3层的形成。合金元素的加入改变了钢的显微组织。钢中高密度的细小析出物提供了更好的抗蒸汽氧化性。IMCs与基体之间的异质界面可能在基体中起重要的成核和扩散作用,导致连续的Cr 2 O 3层的快速形成。

更新日期:2021-07-22
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