High-temperature air oxidation of coatings based on eutectic (β-NiAl + γ-Re) alloys and NiAl intermetallide

被引：0
|
作者：
V. E. Oliker
M. Yu. Barabash
E. F. Grechishkin
I. I. Timofeeva
T. Ya. Gridasova
机构：
[1] National Academy of Sciences of Ukraine,Institute for Problems of Materials Science
来源：
Powder Metallurgy and Metal Ceramics | 2007年 / 46卷
关键词：
nickel; aluminum; intermetallide; eutectic alloy; high-temperature oxidation; surface; structure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High-temperature air oxidation (up to 1100°C) of detonation coatings made of NiAl intermetallide and eutectic (β-NiAl + γ-Re) alloys is examined with x-ray diffraction and electron microscopy. A substantial difference between the air oxidation mechanisms of these coatings is revealed. The key factor that governs the air oxidation of these coatings is the ratio between rates at which aluminum and nickel oxides are formed.
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页码：175 / 181
页数：6
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