Oxidation behavior of alumina-forming alloys in CO2-H 2O environment

B. A. Pint; I. G. Wright

Oxidation behavior of alumina-forming alloys in CO₂-H ₂O environment

B. A. Pint, I. G. Wright

Materials Science and Technology Div

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

The oxidation behavior of wrought and dispersion-strengthened alumina-forming FeCrAl and Fe-Al alloys was evaluated in a CO₂-H ₂O atmosphere at 1100°C. This environment simulates a potential future high temperature oxy-fired superheater condition. Alumina-forming alloys typically perform better than chromia-forming alloys in the presence of water vapor and high carbon activities at high temperature. However, under these conditions, a significant increase in scale exfoliation and oxidation rate was observed compared to similar exposures in ambient air. Additional characterization is needed to understand these observations.

Original language	English
Journal	NACE - International Corrosion Conference Series
State	Published - 2010
Event	Corrosion 2010 - San Antonio, TX, United States Duration: Mar 14 2010 → Mar 18 2010

Keywords

Alumina-forming alloys
CO
HO
Oxide dispersion strengthened alloys
Oxy-fired boilers
Scale spallation

Cite this

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title = "Oxidation behavior of alumina-forming alloys in CO2-H 2O environment",

abstract = "The oxidation behavior of wrought and dispersion-strengthened alumina-forming FeCrAl and Fe-Al alloys was evaluated in a CO2-H 2O atmosphere at 1100°C. This environment simulates a potential future high temperature oxy-fired superheater condition. Alumina-forming alloys typically perform better than chromia-forming alloys in the presence of water vapor and high carbon activities at high temperature. However, under these conditions, a significant increase in scale exfoliation and oxidation rate was observed compared to similar exposures in ambient air. Additional characterization is needed to understand these observations.",

keywords = "Alumina-forming alloys, CO, HO, Oxide dispersion strengthened alloys, Oxy-fired boilers, Scale spallation",

author = "Pint, {B. A.} and Wright, {I. G.}",

year = "2010",

language = "English",

journal = "NACE - International Corrosion Conference Series",

issn = "0361-4409",

note = "Corrosion 2010 ; Conference date: 14-03-2010 Through 18-03-2010",

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TY - JOUR

T1 - Oxidation behavior of alumina-forming alloys in CO2-H 2O environment

AU - Pint, B. A.

AU - Wright, I. G.

PY - 2010

Y1 - 2010

N2 - The oxidation behavior of wrought and dispersion-strengthened alumina-forming FeCrAl and Fe-Al alloys was evaluated in a CO2-H 2O atmosphere at 1100°C. This environment simulates a potential future high temperature oxy-fired superheater condition. Alumina-forming alloys typically perform better than chromia-forming alloys in the presence of water vapor and high carbon activities at high temperature. However, under these conditions, a significant increase in scale exfoliation and oxidation rate was observed compared to similar exposures in ambient air. Additional characterization is needed to understand these observations.

AB - The oxidation behavior of wrought and dispersion-strengthened alumina-forming FeCrAl and Fe-Al alloys was evaluated in a CO2-H 2O atmosphere at 1100°C. This environment simulates a potential future high temperature oxy-fired superheater condition. Alumina-forming alloys typically perform better than chromia-forming alloys in the presence of water vapor and high carbon activities at high temperature. However, under these conditions, a significant increase in scale exfoliation and oxidation rate was observed compared to similar exposures in ambient air. Additional characterization is needed to understand these observations.

KW - Alumina-forming alloys

KW - CO

KW - HO

KW - Oxide dispersion strengthened alloys

KW - Oxy-fired boilers

KW - Scale spallation

UR - http://www.scopus.com/inward/record.url?scp=79952972512&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:79952972512

SN - 0361-4409

JO - NACE - International Corrosion Conference Series

JF - NACE - International Corrosion Conference Series

T2 - Corrosion 2010

Y2 - 14 March 2010 through 18 March 2010

ER -

Oxidation behavior of alumina-forming alloys in CO₂-H ₂O environment

Abstract

Keywords

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