Initial Oxidation of Fe–Al and Fe–Cr–Al Alloys: Cr as an Alumina Booster

被引：0
作者：
M. H. Heinonen
K. Kokko
M. P. J. Punkkinen
E. Nurmi
J. Kollár
L. Vitos
机构：
[1] University of Turku,Department of Physics and Astronomy
[2] Turku University Centre for Materials and Surfaces (MatSurf),Department of Physics and Materials Science
[3] Uppsala University,Applied Materials Physics, Department of Materials Science and Engineering
[4] Graduate School of Materials Research,undefined
[5] Research Institute for Solid State Physics and Optics,undefined
[6] Royal Institute of Technology,undefined
来源：
Oxidation of Metals | 2011年 / 76卷
关键词：
Oxidation; Fe–Cr–Al; Surface segregation; X-ray photoelectron spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The boosting effect of Cr on the growth of the protective alumina scale on Fe–Al alloys is investigated by X-ray photoelectron spectroscopy. Using low oxygen pressure the surface chemistry of the alloys is monitored starting from the first moments of oxidation. Chromium affects the Fe/Al surface-bulk exchange which is clearly detected by analyzing the measured surface concentrations within the atomic concentration models. Experimental results presented are in good agreement with the previous ones obtained by experiments at ambient conditions and ab initio calculations.
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页码：331 / 346
页数：15
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