کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350815 | 1503663 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation of multilayered scale during the oxidation of NiAl-Mo alloy
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We have studied the oxidation behavior of a hypereutectic NiAl-Mo alloy. This alloy showed an initial rapid mass loss followed by a relatively steady state behavior. The oxide scale formed during the oxidation process was seen to have a multilayered structure comprising of NiO, NiAl2O4, NiMoO4 and Al2O3 with minor amounts of MoO2 in the sub-scale region. The oxidation behavior is influenced significantly by the formation and stability of the constituent oxides, especially NiMoO4. Hence the decomposition behavior of NiMoO4 in the 1100-1200 °C was studied as well. The thermal decomposition of the NiMoO4 was slow at 1100 °C, but accelerated at 1200 °C, resulting in the formation of NiO, which remained in the oxide scale, and MoO3, which volatilized away.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 107-111
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 107-111
نویسندگان
P.K. Ray, M. Akinc, M.J. Kramer,