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@ARTICLE{Li:863563,
author = {Li, Ruiyu and Cai, Yun and Wippermann, Klaus and Lehnert,
Werner},
title = {{T}he {E}lectrochemical {B}ehavior of {C}r{N}/{C}r
{C}oatings with {A}rtificial {D}efects on 316{L} {S}tainless
{S}teel in the {S}imulated {C}athodic {E}nvironment of an
{HT}-{PEFC}},
journal = {Journal of the Electrochemical Society},
volume = {166},
number = {13},
issn = {0013-4651},
address = {Pennington, NJ},
publisher = {Electrochemical Soc.},
reportid = {FZJ-2019-03602},
pages = {C394 - C400},
year = {2019},
abstract = {This paper concerns the corrosion behaviors of
CrN/Cr-SS316L (with artificial defects) in a simulated
high-temperature polymer electrolyte membrane fuel cell
(HT-PEFC) cathode environment and the effect of oxygen on
its corrosion processes. The overall anti-corrosion
performance of CrN/Cr-SS316L (with artificial defects) was
evaluated using the potentiodynamic polarization method
under the environment with either N2 or O2 purging
atmosphere. Electrochemical impedance spectroscopy was used
to clarify the mechanisms of the corrosion processes.
Scanning electron microscopy was then carried out to
investigate the morphological changes of coated specimens
before and after corrosion tests under different gas purging
atmospheres. The existence of O2 is essential for the CrN/Cr
coating with surface defects maintaining good corrosion
resistance in an HT-PEFC and oxygen could initialize the
self-healing ability of CrN/Cr coating with defects in the
hot phosphoric acid. On the basis of the experimental
findings, the mechanisms of the influence of oxygen on the
corrosion processes of the CrN/Cr-SS316L in the simulated
cathodic environment of an HT-PEFC are ultimately proposed.},
cin = {IEK-3 / IEK-14},
ddc = {660},
cid = {I:(DE-Juel1)IEK-3-20101013 / I:(DE-Juel1)IEK-14-20191129},
pnm = {135 - Fuel Cells (POF3-135)},
pid = {G:(DE-HGF)POF3-135},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000482552100001},
doi = {10.1149/2.0591913jes},
url = {https://juser.fz-juelich.de/record/863563},
}