Cyclic oxidation behavior and durability of ODS-FeCrAl alloys in H 2O and CO2 rich environments

Sebastien Dryepondt; Bruce A. Pint

Cyclic oxidation behavior and durability of ODS-FeCrAl alloys in H ₂O and CO₂ rich environments

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Cyclic oxidation testing of oxide dispersion-strengthened (ODS) FeCrAl alloys was conducted at 1200°C in O₂, dry air and in atmospheres rich in H₂O and/or CO₂ to simulate combustion environments. The oxidation rates were significantly higher in air + 10%H ₂O and a mixture of O₂-buffered 50%H₂O- 50%CO₂, leading to shorter times to breakaway oxidation. Curve fitting using the COSP cyclic oxidation program confirmed that the presence of H₂O resulted in an increase in the alumina spallation rate. The use of specimen mass gain modeling associated with the characterization of pre-oxidized specimens and in particular the determination of the remaining Al content after exposure, will enable more accurately estimates of ODS FeCrAl durability in combustion environments.

Original language	English
Title of host publication	NACE International - Corrosion 2013 Conference and Expo
State	Published - 2013
Event	Corrosion 2013 - Orlando, FL, United States Duration: Mar 17 2013 → Mar 21 2013

Publication series

Name	NACE - International Corrosion Conference Series
ISSN (Print)	0361-4409

Conference

Conference	Corrosion 2013
Country/Territory	United States
City	Orlando, FL
Period	03/17/13 → 03/21/13

Keywords

CO
Cyclic oxidation
Epma
Humid air
Lifetime model

Cite this

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title = "Cyclic oxidation behavior and durability of ODS-FeCrAl alloys in H 2O and CO2 rich environments",

abstract = "Cyclic oxidation testing of oxide dispersion-strengthened (ODS) FeCrAl alloys was conducted at 1200°C in O2, dry air and in atmospheres rich in H2O and/or CO2 to simulate combustion environments. The oxidation rates were significantly higher in air + 10%H 2O and a mixture of O2-buffered 50%H2O- 50%CO2, leading to shorter times to breakaway oxidation. Curve fitting using the COSP cyclic oxidation program confirmed that the presence of H2O resulted in an increase in the alumina spallation rate. The use of specimen mass gain modeling associated with the characterization of pre-oxidized specimens and in particular the determination of the remaining Al content after exposure, will enable more accurately estimates of ODS FeCrAl durability in combustion environments.",

keywords = "CO, Cyclic oxidation, Epma, Humid air, Lifetime model",

author = "Sebastien Dryepondt and Pint, {Bruce A.}",

year = "2013",

language = "English",

isbn = "9781627481458",

series = "NACE - International Corrosion Conference Series",

booktitle = "NACE International - Corrosion 2013 Conference and Expo",

note = "Corrosion 2013 ; Conference date: 17-03-2013 Through 21-03-2013",

}

TY - GEN

T1 - Cyclic oxidation behavior and durability of ODS-FeCrAl alloys in H 2O and CO2 rich environments

AU - Dryepondt, Sebastien

AU - Pint, Bruce A.

PY - 2013

Y1 - 2013

N2 - Cyclic oxidation testing of oxide dispersion-strengthened (ODS) FeCrAl alloys was conducted at 1200°C in O2, dry air and in atmospheres rich in H2O and/or CO2 to simulate combustion environments. The oxidation rates were significantly higher in air + 10%H 2O and a mixture of O2-buffered 50%H2O- 50%CO2, leading to shorter times to breakaway oxidation. Curve fitting using the COSP cyclic oxidation program confirmed that the presence of H2O resulted in an increase in the alumina spallation rate. The use of specimen mass gain modeling associated with the characterization of pre-oxidized specimens and in particular the determination of the remaining Al content after exposure, will enable more accurately estimates of ODS FeCrAl durability in combustion environments.

AB - Cyclic oxidation testing of oxide dispersion-strengthened (ODS) FeCrAl alloys was conducted at 1200°C in O2, dry air and in atmospheres rich in H2O and/or CO2 to simulate combustion environments. The oxidation rates were significantly higher in air + 10%H 2O and a mixture of O2-buffered 50%H2O- 50%CO2, leading to shorter times to breakaway oxidation. Curve fitting using the COSP cyclic oxidation program confirmed that the presence of H2O resulted in an increase in the alumina spallation rate. The use of specimen mass gain modeling associated with the characterization of pre-oxidized specimens and in particular the determination of the remaining Al content after exposure, will enable more accurately estimates of ODS FeCrAl durability in combustion environments.

KW - CO

KW - Cyclic oxidation

KW - Epma

KW - Humid air

KW - Lifetime model

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M3 - Conference contribution

AN - SCOPUS:84883074603

SN - 9781627481458

T3 - NACE - International Corrosion Conference Series

BT - NACE International - Corrosion 2013 Conference and Expo

T2 - Corrosion 2013

Y2 - 17 March 2013 through 21 March 2013

ER -