Aluminum pack cementation of Mo-Si-B alloys

被引：67
作者：
Sakidja, R.
Rioult, F.
Werner, J.
Perepezko, J. H.
机构：
[1] Univ Wisconsin, Madison, WI 53706 USA
[2] Caterpillar Inc, Peoria, IL 61656 USA
来源：
SCRIPTA MATERIALIA | 2006年 / 55卷 / 10期
关键词：
chemical vapor deposition (CVD); pack cementation; oxidation; high temperature; coatings;
D O I：
10.1016/j.scriptamat.2006.07.044
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The application of a pack cementation coating of aluminum on Mo-rich Mo-Si-B alloys prior to oxygen exposure yields a significant improvement in the oxidation resistance over a wide temperature range (732-1372 degrees C). Upon exposure to oxygen, the Mo3Al8-rich layer that forms during the aluminum pack cementation treatment develops a protective Al2O3 layer on the surface that can be maintained by inhibiting Al diffusion into the substrate. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：903 / 906
页数：4
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