The effect of aluminium addition on the high-temperature oxidation behaviour and Cr evaporation of aluminised and alumina-forming alloys for SOFC cathode air pre-heaters

Kun Zhang; Ahmad El-Kharouf; Jong-Eun Hong; Robert Steinberger-Wilckens

doi:10.1016/j.corsci.2020.108612

The effect of aluminium addition on the high-temperature oxidation behaviour and Cr evaporation of aluminised and alumina-forming alloys for SOFC cathode air pre-heaters

Kun Zhang, Ahmad El-Kharouf, Jong-Eun Hong, Robert Steinberger-Wilckens

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

170 Downloads (Pure)

Abstract

The corrosion behaviour and Cr retention ability of SS309, aluminised SS309, and AluChrom 318 have been investigated at 850 °C in air with 3% H₂O. The SS309 samples failed the specifications for application as cathode air preheater (CAPH) material due to a high Cr evaporation rate and massive scale spallation. The surface aluminisation dramatically decreased the Cr evaporation rate of SS309, but not in the long-term due to breakaway oxidation induced alumina scale spallation. The AluChrom 318 formed a γ-Al₂O₃/α-Al₂O₃ layer scale and demonstrated the highest Cr retention ability and oxidation resistance among the tested alloy samples.

Original language	English
Article number	108612
Number of pages	11
Journal	Corrosion Science
Volume	169
Early online date	20 Mar 2020
DOIs	https://doi.org/10.1016/j.corsci.2020.108612
Publication status	Published - Jun 2020

Keywords

SOFC
Stainless Steel
Heat exchanger
Heat Treatment
Denuder technique
FeCrAl alloy
High temperature oxidation
Cr evaporation

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Metals and Alloys
Energy Engineering and Power Technology
General Chemical Engineering
General Chemistry
General Materials Science

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10.1016/j.corsci.2020.108612Licence: None: All rights reserved

Zhang_et_al_The_effect_of_aluminium_addition_Corrosion_Science_2020Accepted author manuscript, 4.82 MBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

https://doi.org/10.1016/j.corsci.2020.108612Licence: None: All rights reserved

H2020_COLLAB_HEATSTACK
Steinberger-Wilckens, R.
European Commission
1/04/16 → 29/02/20
Project: EU

Cite this

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title = "The effect of aluminium addition on the high-temperature oxidation behaviour and Cr evaporation of aluminised and alumina-forming alloys for SOFC cathode air pre-heaters",

abstract = "The corrosion behaviour and Cr retention ability of SS309, aluminised SS309, and AluChrom 318 have been investigated at 850 °C in air with 3% H2O. The SS309 samples failed the specifications for application as cathode air preheater (CAPH) material due to a high Cr evaporation rate and massive scale spallation. The surface aluminisation dramatically decreased the Cr evaporation rate of SS309, but not in the long-term due to breakaway oxidation induced alumina scale spallation. The AluChrom 318 formed a γ-Al2O3/α-Al2O3 layer scale and demonstrated the highest Cr retention ability and oxidation resistance among the tested alloy samples. ",

keywords = "SOFC, Stainless Steel, Heat exchanger, Heat Treatment, Denuder technique, FeCrAl alloy, High temperature oxidation, Cr evaporation",

author = "Kun Zhang and Ahmad El-Kharouf and Jong-Eun Hong and Robert Steinberger-Wilckens",

year = "2020",

month = jun,

doi = "10.1016/j.corsci.2020.108612",

language = "English",

volume = "169",

journal = "Corrosion Science",

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TY - JOUR

T1 - The effect of aluminium addition on the high-temperature oxidation behaviour and Cr evaporation of aluminised and alumina-forming alloys for SOFC cathode air pre-heaters

AU - Zhang, Kun

AU - El-Kharouf, Ahmad

AU - Hong, Jong-Eun

AU - Steinberger-Wilckens, Robert

PY - 2020/6

Y1 - 2020/6

N2 - The corrosion behaviour and Cr retention ability of SS309, aluminised SS309, and AluChrom 318 have been investigated at 850 °C in air with 3% H2O. The SS309 samples failed the specifications for application as cathode air preheater (CAPH) material due to a high Cr evaporation rate and massive scale spallation. The surface aluminisation dramatically decreased the Cr evaporation rate of SS309, but not in the long-term due to breakaway oxidation induced alumina scale spallation. The AluChrom 318 formed a γ-Al2O3/α-Al2O3 layer scale and demonstrated the highest Cr retention ability and oxidation resistance among the tested alloy samples.

AB - The corrosion behaviour and Cr retention ability of SS309, aluminised SS309, and AluChrom 318 have been investigated at 850 °C in air with 3% H2O. The SS309 samples failed the specifications for application as cathode air preheater (CAPH) material due to a high Cr evaporation rate and massive scale spallation. The surface aluminisation dramatically decreased the Cr evaporation rate of SS309, but not in the long-term due to breakaway oxidation induced alumina scale spallation. The AluChrom 318 formed a γ-Al2O3/α-Al2O3 layer scale and demonstrated the highest Cr retention ability and oxidation resistance among the tested alloy samples.

KW - SOFC

KW - Stainless Steel

KW - Heat exchanger

KW - Heat Treatment

KW - Denuder technique

KW - FeCrAl alloy

KW - High temperature oxidation

KW - Cr evaporation

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U2 - 10.1016/j.corsci.2020.108612

DO - 10.1016/j.corsci.2020.108612

M3 - Article

AN - SCOPUS:85082519298

SN - 0010-938X

VL - 169

JO - Corrosion Science

JF - Corrosion Science

M1 - 108612

ER -

The effect of aluminium addition on the high-temperature oxidation behaviour and Cr evaporation of aluminised and alumina-forming alloys for SOFC cathode air pre-heaters

Abstract

Keywords

ASJC Scopus subject areas

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Projects

H2020_COLLAB_HEATSTACK

Cite this