Evaluation of SUS430 with Mn-Co coating as SOFC interconnect in reducing atmosphere

C. Jia, M. Chen, M. Han, J. Wu

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In this study, the corrosion behavior of Mn-Co metallic coating on SUS430 steel in reducing atmosphere is evaluated at 800 °C. Samples are coated by commercial physical vapor deposition (PVD) and oxidized in humidified H2/N2 for 1250 hours. The results show the instability of this Mn-Co metallic coating in reducing atmosphere and the failure to protect the base material. Further investigation by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy proves that the desired Mn-Co spinel cannot be formed in reducing atmosphere. In conclusion, this Mn-Co coating is not appropriate for the protection of corrosion of SUS430 interconnect at anode side. New materials need to be found for good protection of the steels in order to increase the long-term performance of fuel cell stacks.
Original languageEnglish
JournalECS Transactions
Volume91
Issue number1
Pages (from-to)2241-2252
Number of pages12
ISSN1938-5862
DOIs
Publication statusPublished - 2019

Cite this

Jia, C. ; Chen, M. ; Han, M. ; Wu, J. / Evaluation of SUS430 with Mn-Co coating as SOFC interconnect in reducing atmosphere. In: ECS Transactions. 2019 ; Vol. 91, No. 1. pp. 2241-2252.
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abstract = "In this study, the corrosion behavior of Mn-Co metallic coating on SUS430 steel in reducing atmosphere is evaluated at 800 °C. Samples are coated by commercial physical vapor deposition (PVD) and oxidized in humidified H2/N2 for 1250 hours. The results show the instability of this Mn-Co metallic coating in reducing atmosphere and the failure to protect the base material. Further investigation by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy proves that the desired Mn-Co spinel cannot be formed in reducing atmosphere. In conclusion, this Mn-Co coating is not appropriate for the protection of corrosion of SUS430 interconnect at anode side. New materials need to be found for good protection of the steels in order to increase the long-term performance of fuel cell stacks.",
author = "C. Jia and M. Chen and M. Han and J. Wu",
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Evaluation of SUS430 with Mn-Co coating as SOFC interconnect in reducing atmosphere. / Jia, C.; Chen, M.; Han, M.; Wu, J.

In: ECS Transactions, Vol. 91, No. 1, 2019, p. 2241-2252.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Evaluation of SUS430 with Mn-Co coating as SOFC interconnect in reducing atmosphere

AU - Jia, C.

AU - Chen, M.

AU - Han, M.

AU - Wu, J.

PY - 2019

Y1 - 2019

N2 - In this study, the corrosion behavior of Mn-Co metallic coating on SUS430 steel in reducing atmosphere is evaluated at 800 °C. Samples are coated by commercial physical vapor deposition (PVD) and oxidized in humidified H2/N2 for 1250 hours. The results show the instability of this Mn-Co metallic coating in reducing atmosphere and the failure to protect the base material. Further investigation by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy proves that the desired Mn-Co spinel cannot be formed in reducing atmosphere. In conclusion, this Mn-Co coating is not appropriate for the protection of corrosion of SUS430 interconnect at anode side. New materials need to be found for good protection of the steels in order to increase the long-term performance of fuel cell stacks.

AB - In this study, the corrosion behavior of Mn-Co metallic coating on SUS430 steel in reducing atmosphere is evaluated at 800 °C. Samples are coated by commercial physical vapor deposition (PVD) and oxidized in humidified H2/N2 for 1250 hours. The results show the instability of this Mn-Co metallic coating in reducing atmosphere and the failure to protect the base material. Further investigation by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy proves that the desired Mn-Co spinel cannot be formed in reducing atmosphere. In conclusion, this Mn-Co coating is not appropriate for the protection of corrosion of SUS430 interconnect at anode side. New materials need to be found for good protection of the steels in order to increase the long-term performance of fuel cell stacks.

U2 - 10.1149/09101.2241ecst

DO - 10.1149/09101.2241ecst

M3 - Journal article

VL - 91

SP - 2241

EP - 2252

JO - E C S Transactions

JF - E C S Transactions

SN - 1938-5862

IS - 1

ER -