Effect of nanocrystallisation on oxide composition of Ni-20Cr alloy at 1000°C

被引：0
|
作者：
Geng, SJ [1 ]
Wang, FH [1 ]
Zhu, SL [1 ]
Li, Y [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2002年 / 18卷 / 10期
关键词：
D O I：
10.1179/026708302225005954
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Ni-20Cr nanocrystalline coating was obtained by means of magnetron sputtering. The oxide composition of the Ni-20Cr alloy and its nanocrystalline coating after treatment in air at 1000degreesC was analysed. The results indicated that the oxide scale formed on Ni-20Cr alloy is composed of two layers. The external layer consists of NiO containing some Cr2O3 particles and the internal layer is continuous Cr2O3 with a little NiCr2O4, whereas the scale formed on the sputtered Ni-20Cr nanocrystalline coating consists mainly of Cr2O3 with a little NiCr2O4. The mechanism for the effect of nanocrystallisation on the oxidation of the Ni-20Cr alloy is discussed.
引用
收藏
页码：1101 / 1103
页数：3
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