Failure behavior of an aluminide coating on a co-base superalloy during high-temperature oxidation in air

被引：13
|
作者：
Liu, PS [1 ]
Liang, KM
Gu, SR
机构：
[1] Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110015, Peoples R China
来源：
OXIDATION OF METALS | 2000年 / 54卷 / 3-4期
关键词：
aluminide coating; Co-base superalloy; high-temperature oxidation; corrosion nodule;
D O I：
10.1023/A:1004650328779
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A surface-morphology change has been observed for an aluminide coating on the Go-base superalloy DZ40M during oxidation at 1100 degrees C in air. The oxide formed on the coating remained an even greyish-white color during the stable oxidation stage, whereas, dark-colored corrosion nodules were observed when oxidation of the coating accelerated. The number of nodules increased with time, along with growth of the nodules, eventually covering the entire surface which signified failure.
引用
收藏
页码：277 / 283
页数：7
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