the 17th Annual Conference on Fossil Energy Materials | |
CORROSION BEHAVIOR OF STAINLESS STEEL IN SOLID OXIDE FUELCELL SIMULATED GASEOUS ENVIRONMENTS | |
M. Ziomek-Moroz ; B. S. Covino ; Jr. ; G. R. Holcomb ; S. D. Cramer ; S. A. Matthes | |
Others : http://www.netl.doe.gov/publications/proceedings/03/materials/manuscripts/Ziomek_m.pdf PID : 49045 |
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来源: CEUR | |
【 摘 要 】
Significant progress in reducing the operating temperature of solid oxide fuel cells (SOFC) from ~1000°C to ~ 750°C may permit the replacement of currently used ceramic interconnects by metallic interconnects in planar SOFCs (PSOFC). The use ofmetallic interconnects will result in a substantial cost reduction of PSOFCs. The interconnects operate in severe gaseous environments, in which one side of the interconnect can be exposed to hydrogen and the other side to air or oxygen at temperatures up to 800°C. Similar environmental conditions can exist in devices used for separating hydrogen from CO after reforming methane and steam. Type 304 stainless steel was selected for this base line study aimed at understanding corrosion processes in dual gas environments. This paper discusses the oxidation resistance of 304 stainless steel exposed to a dual environment gas at 800°C. The dual environment consisted of air on one side of the specimen and 1% hydrogen in nitrogen on the other side. The surface characterization techniques used in this study were optical and scanning electron microscopy, as well as various x-ray techniques.
【 预 览 】
Files | Size | Format | View |
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CORROSION BEHAVIOR OF STAINLESS STEEL IN SOLID OXIDE FUELCELL SIMULATED GASEOUS ENVIRONMENTS | 765KB | download |