Evaluation of Corrosion Resistance of Coated and Uncoated Stainless-Steel Separators at Cathode Side for Molten Carbonate Fuel Cell
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- Kim Byung-Il
- Department of Metallurgical Engineering, Sunchon National University
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- Park Hyeoung-Ho
- KIRaM (Korea Research Institute of Rare Metals)
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- Lee Min-Ho
- Department of Metallurgical Engineering, Kwangyang College
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- Goto Shoji
- Department of Materials Science and Engineering, Faculty of Engineering and Resource Science, Akita University
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- Aso Setsuo
- Department of Materials Science and Engineering, Faculty of Engineering and Resource Science, Akita University
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- Komatsu Yoshinari
- Department of Materials Science and Engineering, Faculty of Engineering and Resource Science, Akita University
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抄録
In order to evaluate the corrosion resistance of a cathode-side separator for a molten carbonate fuel cell (MCFC), SUS316 and SACC-SUS316 (chromium and aluminum were simultaneously deposited by diffusion into SUS316 austenitic stainless steel substrate using the pack-cementation process) were used as the separator materials. In the case of SUS316, corrosion proceeded via three steps: the formation of a corrosion product until the corrosion product becomes stable; the protection against corrosion until breakaway occurs; and the advancement of corrosion after breakaway. Since SUS316 showed a high corrosion rate in the cathode environment, it would be impossible to use it as a separator without suitable surface modification because of the occurrence of severe stability problems of the cell during long-term operation. In contrast, SACC-SUS316 showed higher corrosion resistance than the present separator material, SUS316. No corrosion was observed on SACC-SUS316 after 480 h at 923 K. Therefore, this material is thought to be very useful as an alternative separator at the cathode side for MCFC in the future.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 43 (3), 593-600, 2002
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679228365568
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- NII論文ID
- 130004451847
- 10012322076
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD38XjsFGrsbY%3D
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 6111689
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可