Hoche, Holger ; Ulrich, Thomas ; Kaestner, Peter ; Oechsner, Matthias (2024)
Empowering PVD for corrosion protection : TiMgGdN coatings with game‐changing corrosion performance: A genuine competitor to electroplated chromium.
In: Vakuum in Forschung und Praxis, 36 (2)
doi: 10.1002/vipr.202400813
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
A novel, monolithic DC‐magnetron sputtered TiN+MgGd coating, only 3 to 5 μm thick, effectively protects steel substrates from corrosion. This achievement is due to alloying of TiN with MgGd, which not only maintains the renowned wear resistance of TiN coatings, but potentially improves it through optimized deposition parameters.
The key to the enhanced corrosion resistance lies in the addition of magnesium (Mg) and gadolinium (Gd). It reduces the coating's free corrosion potential, thereby mitigating the driving force for galvanic corrosion between coating and substrate. Moreover, at specific Mg to Gd ratios, a cathodic protection effect can be observed. Crucially, the presence of Gd is essential for this performance. It imparts hydrophobicity to the coating surface, reinforces a passivating layer and significantly enhances defect tolerance.
This discovery paves the way for a sustainable alternative to electroplated chromium or combined electroplating and PVD, offering superior corrosion protection with minimal coating thickness.
Typ des Eintrags: | Artikel | ||||
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Erschienen: | 2024 | ||||
Autor(en): | Hoche, Holger ; Ulrich, Thomas ; Kaestner, Peter ; Oechsner, Matthias | ||||
Art des Eintrags: | Bibliographie | ||||
Titel: | Empowering PVD for corrosion protection : TiMgGdN coatings with game‐changing corrosion performance: A genuine competitor to electroplated chromium | ||||
Sprache: | Englisch | ||||
Publikationsjahr: | April 2024 | ||||
Ort: | Weinheim | ||||
Verlag: | Wiley-VCH | ||||
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Vakuum in Forschung und Praxis | ||||
Jahrgang/Volume einer Zeitschrift: | 36 | ||||
(Heft-)Nummer: | 2 | ||||
DOI: | 10.1002/vipr.202400813 | ||||
Zugehörige Links: | |||||
Kurzbeschreibung (Abstract): | A novel, monolithic DC‐magnetron sputtered TiN+MgGd coating, only 3 to 5 μm thick, effectively protects steel substrates from corrosion. This achievement is due to alloying of TiN with MgGd, which not only maintains the renowned wear resistance of TiN coatings, but potentially improves it through optimized deposition parameters. The key to the enhanced corrosion resistance lies in the addition of magnesium (Mg) and gadolinium (Gd). It reduces the coating's free corrosion potential, thereby mitigating the driving force for galvanic corrosion between coating and substrate. Moreover, at specific Mg to Gd ratios, a cathodic protection effect can be observed. Crucially, the presence of Gd is essential for this performance. It imparts hydrophobicity to the coating surface, reinforces a passivating layer and significantly enhances defect tolerance. This discovery paves the way for a sustainable alternative to electroplated chromium or combined electroplating and PVD, offering superior corrosion protection with minimal coating thickness. |
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Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau | ||||
Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet und Institut für Werkstoffkunde - Zentrum für Konstruktionswerkstoffe - Staatliche Materialprüfungsanstalt Darmstadt (IfW-MPA) |
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Hinterlegungsdatum: | 12 Jun 2024 14:27 | ||||
Letzte Änderung: | 12 Jun 2024 14:27 | ||||
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Empowering PVD for corrosion protection : TiMgGdN coatings with game‐changing corrosion performance: A genuine competitor to electroplated chromium. (deposited 11 Jun 2024 11:53)
- Empowering PVD for corrosion protection : TiMgGdN coatings with game‐changing corrosion performance: A genuine competitor to electroplated chromium. (deposited 12 Jun 2024 14:27) [Gegenwärtig angezeigt]
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