Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/122740
Título: Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment
Autores/as: Avram, Diana Nicoleta
Davidescu, Corneliu Mircea
Hulka, Iosif 
Dan, Mircea Laurentiu
Stanciu, Elena Manuela 
Pascu, Alexandru 
Mirza Rosca, Julia Claudia 
Clasificación UNESCO: 3313 Tecnología e ingeniería mecánicas
Palabras clave: Corrosion
Electrochemical Evaluation
Laser Cladding
PEMFC
Protective Coatings
Fecha de publicación: 2023
Publicación seriada: Materials 
Resumen: Here, potential metallic bipolar plate (BP) materials were manufactured by laser coating NiCr-based alloys with different Ti additions on low carbon steel substrates. The titanium content within the coating varied between 1.5 and 12.5 wt%. Our present study focussed on electrochemically testing the laser cladded samples in a milder solution. The electrolyte used for all of the electrochemical tests consisted of a 0.1 M Na2SO4 solution (acidulated with H2SO4 at pH = 5) with the addition of 0.1 ppm F−. The corrosion resistance properties of the laser-cladded samples was evaluated using an electrochemical protocol, which consisted of the open circuit potential (OCP), electrochemical impedance spectroscopy (EIS) measurements, and potentiodynamic polarization, followed by potentiostatic polarization under simulated proton exchange membrane fuel cell (PEMFC) anodic and cathodic environments for 6 h each. After the samples were subjected to potentiostatic polarization, the EIS measurements and potentiodynamic polarization were repeated. The microstructure and chemical composition of the laser cladded samples were investigated by scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectroscopy (EDX) analysis.
URI: http://hdl.handle.net/10553/122740
ISSN: 1996-1944
DOI: 10.3390/ma16083056
Fuente: Materials [EISSN 1996-1944], v. 16 (8), 3056, (Abril 2023)
Colección:Artículos
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