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Effect of Cr and Y2O3 on the oxidation behavior of Co-based oxide dispersion strengthened superalloys at 900 degrees C

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Title: Effect of Cr and Y2O3 on the oxidation behavior of Co-based oxide dispersion strengthened superalloys at 900 degrees C
Authors: Yu, Hao Browse this author
Ukai, Shigeharu Browse this author
Hayashi, Shigenari Browse this author
Oono, Naoko Hori Browse this author
Keywords: Cobalt
Alumina
EPMA
Oxidation
Issue Date: Oct-2017
Publisher: Elsevier
Journal Title: Corrosion Science
Volume: 127
Start Page: 147
End Page: 156
Publisher DOI: 10.1016/j.corsci.2017.08.013
Abstract: In order to study the effect of Cr and Y2O3 addition on the oxidation behavior of novel Co-20Cr-10Al (wt.%) oxide dispersion strengthened (ODS) superalloys, an isothermal oxidation test was carried out at 900 degrees C in air. The addition of Cr altered the oxide scale from the multilayered scale with an external Co oxide/CoAl2O4 and an inner Al2O3 to a single Al2O3 scale. Y2O3 addition increased oxidation mass gain slightly but improved spallation resistance of the external Al2O3 scale.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/75595
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 余 浩

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