HIGH-TEMPERATURE OXIDATION OF SPRAYED NiAl-Re COATINGS SUBJECTED TO MAGNETIC TREATMENT

被引：0
|
作者：
Oliker, V. E. [1 ]
Eliseeva, E. N. [1 ]
Gridasova, T. Ya. [2 ]
Timofeeva, I. I. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine
[2] Natl Tech Univ Ukraine, Kiev Polytechn Inst, Kiev, Ukraine
来源：
POWDER METALLURGY AND METAL CERAMICS | 2010年 / 49卷 / 5-6期
关键词：
scale; intermetallic coating; treatment in magnetic field; MECHANICAL-PROPERTIES; ALLOYS; MICROSTRUCTURE;
D O I：
10.1007/s11106-010-9241-5
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of structural changes that occur in heat-resistant detonation-sprayed NiAl-Re coatings treated in the magnetic field on their oxidation is examined. It is shown that the surface of coatings subjected to magnetic treatment is rich in nickel and layers of nickel oxides form more intensively and to a greater depth (as compared with those without magnetic treatment) until a continuous layer of alumina forms in the scale. The removal of the nickel-rich layer uncovers aluminum-rich surface where a continuous protective layer of Al(2)O(3) scale can be formed in high-temperature oxidation.
引用
收藏
页码：339 / 346
页数：8
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