High temperature corrosion of Cr-W alloys in simulated syngas
Conference
·
OSTI ID:912977
Search for new high temperature materials for energy applications continues. This presentation will focus on degradation of Cr alloys containing 0-30%W by weight in a flowing gas mixture containing 30%CO, 8%CO2, 20%H2, 2%CH4, 0.8%H2S, 0.02%HCl, and 40%N2 by volume at temperatures up to 1000ºC. A pseudo-cyclic test involving heating the specimens, holding them at temperature for varying periods, and cooling them to room temperature was employed. Mass change of the specimens was determined after each cycle. Corrosion scale on the specimens was characterized using SEM, WDX, and XRD. Various sulfides, oxides, carbides, and nitrides were determined in different layers of the scale.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- DOE Contract Number:
- None cited
- OSTI ID:
- 912977
- Report Number(s):
- DOE/NETL-IR-2007-077; TRN: US200802%%503
- Resource Relation:
- Conference: 2007 TMS Annual Meeting: Symposium on Materials in Clean Energy Systems II, Orlando, FL, Feb. 25-Mar. 1, 2007
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:912977
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