Assessment of pitting corrosion in bare and passivated (wet scCO 2 ‐induced patination and chemical passivation) hot‐dip galvanized steel samples with SVET, FTIR, and SEM (EDS)
| العنوان: | Assessment of pitting corrosion in bare and passivated (wet scCO 2 ‐induced patination and chemical passivation) hot‐dip galvanized steel samples with SVET, FTIR, and SEM (EDS) |
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| المؤلفون: | Nuria Fuertes, Ville Saarimaa, Tommy Zavalis, Aaretti Kaleva, Erkki Levänen, Juha-Pekka Nikkanen, Dan Persson, Golrokh Heydari |
| المساهمون: | Tampere University, Materials Science and Environmental Engineering, Research group: Ceramic materials |
| المصدر: | Materials and Corrosion. 71:1619-1628 |
| بيانات النشر: | Wiley, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Passivation, 020209 energy, Mechanical Engineering, Metallurgy, Metals and Alloys, chemistry.chemical_element, 02 engineering and technology, General Medicine, Zinc, Electrochemistry, Galvanization, Surfaces, Coatings and Films, symbols.namesake, chemistry, Mechanics of Materials, 216 Materials engineering, 0202 electrical engineering, electronic engineering, information engineering, Materials Chemistry, Pitting corrosion, Immersion (virtual reality), symbols, Environmental Chemistry, Fourier transform infrared spectroscopy |
| الوصف: | In this study, the local electrochemical activity of untreated and passivated (natural or chemical passivation) zinc specimens was observed during immersion in a 0.1-M NaCl solution. The localized anodic activity during the exposure, measured with the scanning vibrating electrode technique, was linked to zinc dissolution by the pitting corrosion mechanism. It was correlated to specific corrosion products characterized by Fourier transmission infrared (FTIR) microscopy. FTIR molecule maps were produced from individual pitting corrosion sites (100–200 µm in width). With argon ion beam milling and latest energy-dispersive X-ray spectroscopy (EDS) technology, element maps with a high spatial resolution (≪100 nm) were recorded from abrasion- and beam-sensitive corrosion products, showing a residual layer structure. This study demonstrates the capability of FTIR mapping, cross-section polishing, and state-of-the-art scanning electron microscopy imaging, and EDS element mapping to produce high-resolution elemental, molecular, and visual information about pitting corrosion mechanisms on a hot-dip galvanized steel sample. acceptedVersion |
| وصف الملف: | fulltext |
| تدمد: | 1521-4176 0947-5117 |
| DOI: | 10.1002/maco.202011653 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02a416cbc768656bf1e0e9f15afe698f https://doi.org/10.1002/maco.202011653 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....02a416cbc768656bf1e0e9f15afe698f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15214176 09475117 |
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| DOI: | 10.1002/maco.202011653 |