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Corrosion behavior of TiN, TiAlN, TiAlSiN-coated 316L stainless steel in simulated proton exchange membrane fuel cell environment

Version 2 2024-06-05, 00:36
Version 1 2015-04-29, 16:32
journal contribution
posted on 2024-06-05, 00:36 authored by ND Nam, M Vaka, N Tran Hung
To gain high hardness, good thermal stability and corrosion resistance, multicomponent TiAlSiN coating has been developed using different deposition methods. In this study, the influence of Al and Si on the electrochemical properties of TiN-coated 316L stainless steel as bipolar plate (BP) materials has been investigated in simulated proton exchange membrane fuel cell environment. The deposited TiN, TiAlN and TiAlSiN possess high hardness of 23.9, 31.7, 35.0 GPa, respectively. The coating performance of the TiN coating is enhanced by Al and Si addition due to lower corrosion current density and higher Rcoating and Rct values. This result could be attributed to the formation of crystalline-refined TiN(200), which improves the surface roughness, surface resistance, corrosion performance, and decreased passive current density. © 2014 Elsevier B.V. All rights reserved.

History

Journal

Journal of Power Sources

Volume

268

Pagination

240-245

Location

Amsterdam, The Netherlands

ISSN

0378-7753

eISSN

1873-2755

Language

English

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2014, Elsevier

Publisher

ELSEVIER