The Morphology of Thermally Grown α-Al2O3 Scales on Fe-Cr-Al Alloys
The Morphology of Thermally Grown α-Al2O3 Scales on Fe-Cr-Al Alloys
复制标题
Fe-Cr-Al合金热生长α-Al2O3氧化皮的形貌
DOI：
10.1023/a:1018839227090
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发表时间：
1999
影响因子：
2.2
通讯作者：
V. Tolpygo
中科院分区：
文献类型：
--
作者：
V. Tolpygo
研究了Fe-Cr-Al和Fe-Cr-Al- y合金在高温氧化过程中形成的α- al2o3保护层的形貌和生长动力学。扫描电镜观察了无钇合金氧化过程中的氧化起皱现象和界面空穴的形成。本文还重点讨论了表面处理和添加钇对鳞片和鳞片合金界面结构的影响。在现有模型的背景下，讨论了氧化铝形态的几个特征，这些特征以前没有得到足够的重视；概述了一些关键问题。
The morphology and growth kinetics of protectiveα-Al2O3 scales formed duringhigh-temperature oxidation of the Fe-Cr-Al andFe-Cr-Al-Y alloys were studied. Scanning electronmicroscopy observations were focused on the oxidewrinkling phenomenonand formation of interfacial cavities in the course ofoxidation of the yttrium-free alloy. In this paper,emphasis is also placed on the effects of surface preparation and yttrium additions on the scaleand scalealloy interface structures. Several features ofalumina morphology, which have not received sufficientattention previously, are discussed in the context of existing models; some criticalissues are outlined.