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Comparison of Oxidation Behavior of Binary Co-10X (x=Al, Si, Cr) Alloys at 973 and 1073K

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Abstract:

Kinetics and products of oxidation behavior of binary Co-10Al, Co-10Si and Co-10Cr alloys at 0.1Mpa oxygen at 973 and 1073K were analyzed and compared. The investigations show that CoO doesn't provide protective properties at high temperatures. Among the three alloy components, Co-10Cr has better oxidation resistance at 973K, while Co-10Al has at 1073K, and the causes are given. In addition, the schematic model of scale growth process is presented.

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Periodical:

Applied Mechanics and Materials (Volumes 395-396)

Pages:

238-242

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.395-396.238

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Online since:

September 2013

Authors:

Hong Hua Zhang, Jun Huai Xiang, Xian Chao Xu, Chu Wang

Keywords:

Co-Based Alloy, High-Temperature, Oxidation Behavior

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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