Corrosion Resistant TiTaN and TiTaAlN Thin Films Grown by Hybrid HiPIMS/DCMS Using Synchronized Pulsed Substrate Bias with No External Substrate Heating [Elektronisk resurs]
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Chipatecua Godoy, Yuri (författare)
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Tengstrand, Olof (författare)
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Olaya Florez, Jairo (författare)
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Petrov, Ivan (författare)
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Bustos, Erika (författare)
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Hultman, Lars (författare)
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Herrera-Gomez, Alberto (författare)
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Greene, Joseph E (författare)
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Greczynski, Grzegorz (författare)
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Linköpings universitet Institutionen för fysik, kemi och biologi (utgivare)
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Linköpings universitet Tekniska fakulteten (utgivare)
- Publicerad: MDPI, 2019
- Engelska.
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Ingår i: Coatings. - 2079-6412. ; 9:12
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- Relaterad länk:
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http://www.liu.se (Värdpublikation)
Sammanfattning
Ämnesord
Stäng
- Ti0.92Ta0.08N and Ti0.41Al0.51Ta0.08N thin films grown on stainless-steel substrates, with no external heating, by hybrid high-power impulse and dc magnetron sputtering (HiPIMS/DCMS), were investigated for corrosion resistance. The Ta target was operated in HiPIMS mode to supply pulsed Ta-ion fluxes, while two Ti (or Ti and Al) targets were operated in DCSM mode in order to provide a high deposition rate. Corrosion resistance was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy employing a 3.5% NaCl solution at room temperature. The 300-nm-thick transition-metal nitride coatings exhibited good corrosion resistance due to film densification resulting from pulsed heavy Ta-ion irradiation during film growth. Corrosion protective efficiencies were above 99.8% for both Ti0.41Al0.51Ta0.08N and Ti0.92Ta0.08N, and pore resistance was apparently four orders of magnitude higher than for bare 304 stainless-steel substrates.
Ämnesord
- Engineering and Technology (hsv)
- Chemical Engineering (hsv)
- Corrosion Engineering (hsv)
- Teknik och teknologier (hsv)
- Kemiteknik (hsv)
- Korrosionsteknik (hsv)
Genre
- government publication (marcgt)
Indexterm och SAB-rubrik
- HiPIMS; hard coatings; corrosion; TiTaN coatings; TiTaAlN coatings
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