Effect of Y2O3 on microstructure and oxidation of chromizing coating

被引:9
作者
Zhou Yue-bo [1 ]
Zhang Hai-jun [1 ]
Wang Yong-dong [1 ]
机构
[1] Heilongjiang Inst Sci & Technol, Coll Mat Sci & Engn, Harbin 150027, Peoples R China
关键词
Y(2)O(3); electrodeposition; chromizing; oxidation; reactive element effect;
D O I
10.1016/S1003-6326(08)60192-2
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
A Y(2)O(3)-modified chromizing coating was produced by chromizing an as-electrodeposited Ni-Y(2)O(3) composite film using pack cementation method at 1 100 degrees C for 3 h. For comparison, chromizing was also performed under the same condition on an as-deposited Ni film without Y(2)O(3) particles. Oxidation at 900 degrees C for 120 h indicates that although on both two chromizing coatings chromia scales grow during oxidation, the Y(2)O(3)-modified chromizing coating exhibits an increased oxidation resistance due to the formation of thinner, denser and finer-grain scale. The effect Of Y(2)O(3) on the coating formation and the coating oxidation behavior was discussed in detail.
引用
收藏
页码:1122 / 1127
页数:6
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