Effect of magnetic abrasive treatment on high-temperature oxidation of NiAl and NiAl-Re coatings

被引：6
|
作者：
Oliker, V. E. [1 ]
Gridasova, T. Ya. [2 ]
Sirovatka, V. L. [1 ]
Eliseeva, E. N. [1 ]
Timofeeva, I. I. [1 ]
Grechishkin, E. F. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine
[2] Natl Tech Univ Ukraine, Kiev Polytech Inst, Kiev, Ukraine
来源：
POWDER METALLURGY AND METAL CERAMICS | 2009年 / 48卷 / 7-8期
关键词：
NiAl; rhenium; eutectic alloy; detonation coating; oxidation; magnetic abrasive treatment; PLUS GAMMA-RE; MECHANICAL-PROPERTIES; ALLOYS; MICROSTRUCTURE; SCALE;
D O I：
10.1007/s11106-009-9142-7
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：
A comparative microstructural analysis of the scale formed on the NiAl-Re detonation coating shows that the mechanism of its high-temperature oxidation can be changed with preliminary magnetic abrasive treatment (MAT). The scale formed over the NiAl-Re coating in ordinary conditions includes several layers (NiO-NiAl(2)O(4)-Al(2)O(3)), while the scale formed on the MAT coating consists of an Al(2)O(3) monolayer with spinel inclusions. The differences in the oxidation of the NiAl and NiAl-Re coatings after MAT are attributed to changes in their dislocation structure.
引用
收藏
页码：466 / 477
页数：12
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