Air oxidation of chromium-based composites

被引：0
|
作者：
I. V. Oryshich
N. E. Poryadchenko
I. G. Slys’
N. P. Brodnikovskii
A. V. Golovash
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：
oxidation; chromium; powder composites; kinetics; scale; microstructure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The oxidation kinetics of chromium and its composites Cr-2% Mg, Cr-2% (La + B) obtained by powder metallurgy and of heat-resistant VKh-2K alloy obtained at temperatures of 900 to 1400 °C and held for 1 to 50 h is studied. It is shown that the oxidation of pure chromium up to 1100 °C and of composites and VKh-2K alloy up to 1200 °C is described by a parabolic law (n ≈ 2). The oxidation resistance of composites is high and commensurable with that of VKh-2K alloy. Therefore, they are suitable for producing parts for operation at high temperatures and in corrosive environments.
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页码：189 / 193
页数：4
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