Effects of Yttrium on Cyclic Oxidation Resistance of Co-10Cr-5Al Alloy at 700 °C

Ling Yun Bai; Xian Chao Xu; Jun Huai Xiang; Yun Xiang Zheng; Jun Wang

doi:10.4028/www.scientific.net/AMM.528.25

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 528Effects of Yttrium on Cyclic Oxidation Resistance...

Effects of Yttrium on Cyclic Oxidation Resistance of Co-10Cr-5Al Alloy at 700 °C

Abstract:

The cyclic oxidation behavior of Co-10Cr-5Al alloys in atmosphere at 700 °C was investigated. The addition of 0.3 at.% Y changed the oxidation behavior from the approximate parabolic rate law to complex mode. The scale grown on the surface of Co-10Cr-5Al cracked seriously, while the oxide scale the Y doped alloy had better adhesive property. Yttrium doped in the sample promoted the forming of continuous Al₂O₃ layer and decreased the oxidation rate of Co-10Cr-5Al alloys.

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Periodical:

Applied Mechanics and Materials (Volume 528)

Pages:

25-29

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.528.25

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Online since:

February 2014

Authors:

Ling Yun Bai, Xian Chao Xu, Jun Huai Xiang*, Yun Xiang Zheng, Jun Wang

Keywords:

Co-10Cr-5Al, Cyclic Oxidation, High-Temperature, RE Effect

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