Journal
CORROSION SCIENCE
Volume 87, Issue -, Pages 421-426Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.07.006
Keywords
Intermetallics; Metal coatings; Oxidation
Funding
- National Natural Science Foundation of China [51171010]
- Innovation Foundation of BUAA for PhD Graduates [YWF-14-YJSY-001]
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The development of robust high temperature oxidation resistant coatings for Nb-Si based alloy was evaluated for a Mo-Si-B coating system that was applied by a two step process. It is observed that the coating is composed of an outer layer of MoSi2 containing boride dispersoids and an inner layer of unreacted Mo. The mass gain of substrate and Mo-Si-B coating is 190.08 and 1.28 mg cm(-2) after oxidation at 1250 degrees C in dry air for 100 h, respectively. The good oxidation resistance of the coating is attributed to the formation of a continuous borosilicate glass coverage. (C) 2014 Elsevier Ltd. All rights reserved.
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