Isothermal Oxidation of α2-Ti3Al

被引：0
|
作者：
F. Dettenwanger
M. Schütze
机构：
[1] Karl-Winnacker-Institut der Dechema e.V.,
来源：
Oxidation of Metals | 2000年 / 54卷
关键词：
titanium aluminides; oxidation; oxygen-affected zone; alpha case; TEM;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The isothermal oxidation behavior of binary Ti–25 at.% Al was studiedat 1073, 1173, and 1273 K in air and oxygen with emphasis on themicrostructure of the subsurface zone underneath the external oxidescale. Thermogravimetric analysis, acoustic-emission (AE) analysis, lightmicroscopy, scanning electron microscopy (SEM), atomic force microscopy(AFM), and cross-sectional transmission electron microscopy (TEM) werecarried out. Three layers could be identified in the subsurface regionconsisting of an internal oxidation zone of α-Al2O3,and α-Ti, a ternary phase with the empirical formulaTi–21Al–15O (at.%), and an oxygen penetration zone consisting ofα2-Ti3Al(O).
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页码：121 / 138
页数：17
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