Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment
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...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/8/3056 |
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| author | Diana Nicoleta Avram Corneliu Mircea Davidescu Iosif Hulka Mircea Laurentiu Dan Elena Manuela Stanciu Alexandru Pascu Julia Claudia Mirza-Rosca |
| author_facet | Diana Nicoleta Avram Corneliu Mircea Davidescu Iosif Hulka Mircea Laurentiu Dan Elena Manuela Stanciu Alexandru Pascu Julia Claudia Mirza-Rosca |
| author_sort | Diana Nicoleta Avram |
| collection | DOAJ |
| description | 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 Na<sub>2</sub>SO<sub>4</sub> solution (acidulated with H<sub>2</sub>SO<sub>4</sub> at pH = 5) with the addition of 0.1 ppm F<sup>−</sup>. 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. |
| first_indexed | 2024-03-11T04:47:47Z |
| format | Article |
| id | doaj.art-9a87ea53b8bd485998581994fdfb9b3b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:47:47Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9a87ea53b8bd485998581994fdfb9b3b2023-11-17T20:12:27ZengMDPI AGMaterials1996-19442023-04-01168305610.3390/ma16083056Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC EnvironmentDiana Nicoleta Avram0Corneliu Mircea Davidescu1Iosif Hulka2Mircea Laurentiu Dan3Elena Manuela Stanciu4Alexandru Pascu5Julia Claudia Mirza-Rosca6Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, 2 Piata Victoriei, 300006 Timisoara, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, 2 Piata Victoriei, 300006 Timisoara, RomaniaRenewable Energy Research Institute—ICER, Politehnica University Timisoara, 138 Gavril Musicescu Street, 300774 Timisoara, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, 2 Piata Victoriei, 300006 Timisoara, RomaniaMaterials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, RomaniaMaterials Engineering and Welding Department, Transilvania University of Brasov, 29 Eroilor Blvd., 500036 Brasov, RomaniaDepartment of Mechanical Engineering, Las Palmas de Gran Canaria University, 35017 Las Palmas de Gran Canaria, SpainHere, 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 Na<sub>2</sub>SO<sub>4</sub> solution (acidulated with H<sub>2</sub>SO<sub>4</sub> at pH = 5) with the addition of 0.1 ppm F<sup>−</sup>. 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.https://www.mdpi.com/1996-1944/16/8/3056electrochemical evaluationprotective coatingsPEMFCcorrosionlaser cladding |
| spellingShingle | Diana Nicoleta Avram Corneliu Mircea Davidescu Iosif Hulka Mircea Laurentiu Dan Elena Manuela Stanciu Alexandru Pascu Julia Claudia Mirza-Rosca Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment Materials electrochemical evaluation protective coatings PEMFC corrosion laser cladding |
| title | Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment |
| title_full | Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment |
| title_fullStr | Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment |
| title_full_unstemmed | Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment |
| title_short | Corrosion Behavior of Coated Low Carbon Steel in a Simulated PEMFC Environment |
| title_sort | corrosion behavior of coated low carbon steel in a simulated pemfc environment |
| topic | electrochemical evaluation protective coatings PEMFC corrosion laser cladding |
| url | https://www.mdpi.com/1996-1944/16/8/3056 |
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