Oxidation Behavior of Fe-Al Coatings Produced by High Velocity Arc Spraying at 800℃

J Chin Soc Corr Pro

2004, Vol. 24

Issue (6): 368-371 DOI:

Research Report

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Oxidation Behavior of Fe-Al Coatings Produced by High Velocity Arc Spraying at 800℃

Fanjun Meng

装甲兵工程学院院士办

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Abstract The Fe-Al intermetallic coatings have been prepared by high velocity arc spraying (HVAS) technology on 20G steel and the oxidation performance of Fe-Al coatings has been studied. The results demonstrate that the kinetics curve of oxidation approximately follows the logarithmic law and oxidation velocity of Fe-Al coatings is less than that of 20G steel after 5 hours. The composition of the oxidized coating is composed of Al2O3, Fe2O3, Fe3O4 and FeO. These phases distribute unevenly. The protective Al2O3 film firstly forms and preserves the coatings from further oxidation.

Key words: high temperature oxidation HVAS Fe-Al intermetallic coating

Received: 20 June 2003

ZTFLH:

TG174.442

Corresponding Authors: Fanjun Meng E-mail: mfjzjbgcxy.student@sina.com

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Cite this article:

Fanjun Meng. Oxidation Behavior of Fe-Al Coatings Produced by High Velocity Arc Spraying at 800℃. J Chin Soc Corr Pro, 2004, 24(6): 368-371 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2004/V24/I6/368

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