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Title: High temperature corrosion of Cr-W alloys in simulated syngas

Abstract

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.

Authors:
; ;
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV
Sponsoring Org.:
USDOE - Office of Fossil Energy (FE)
OSTI Identifier:
912977
Report Number(s):
DOE/NETL-IR-2007-077
TRN: US200802%%503
DOE Contract Number:
None cited
Resource Type:
Conference
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
Subject:
36 MATERIALS SCIENCE; ALLOYS; CARBIDES; CORROSION; ENERGY SYSTEMS; HEATING; MIXTURES; NITRIDES; OXIDES; SULFIDES; X-RAY DIFFRACTION

Citation Formats

Dogan, O.N., Bullard, S.J., and Covino, B.S., Jr.. High temperature corrosion of Cr-W alloys in simulated syngas. United States: N. p., 2007. Web.
Dogan, O.N., Bullard, S.J., & Covino, B.S., Jr.. High temperature corrosion of Cr-W alloys in simulated syngas. United States.
Dogan, O.N., Bullard, S.J., and Covino, B.S., Jr.. Thu . "High temperature corrosion of Cr-W alloys in simulated syngas". United States. doi:. https://www.osti.gov/servlets/purl/912977.
@article{osti_912977,
title = {High temperature corrosion of Cr-W alloys in simulated syngas},
author = {Dogan, O.N. and Bullard, S.J. and Covino, B.S., Jr.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}

Conference:
Other availability
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