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Corrosion propertie...
Corrosion properties of CVD grown Ti(C,N) coatings in 3.5 wt-% NaCl environment
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- von Fieandt, Linus (författare)
- Uppsala universitet,Oorganisk kemi,Sandvik Coromant AB, Hägersten, Sweden
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- Johansson, Kristina (författare)
- Uppsala universitet,Oorganisk kemi
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- Lindahl, Erik (författare)
- Sandvik Coromant AB, Hägersten, Sweden
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- Larsson, Tommy (författare)
- Seco Tools AB, Fagersta, Sweden
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- Boman, Mats (författare)
- Uppsala universitet,Oorganisk kemi
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- Rehnlund, David, 1986- (författare)
- Uppsala universitet,Oorganisk kemi
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: Corrosion Engineering, Science and Technology. - 1478-422X .- 1743-2782. ; 53:4, s. 316-320
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The corrosion behaviour of Titanium carbonitride (Ti(C,N)) films grown by chemical vapour deposition was analysed in artificial sea water environment. From potentiodynamic polarisation curves, two passivation zones were detected, which originated from an initial oxidation of TiC and TiN to TiO2 followed by growth of the TiO2 layer upon increased polarisation. X-ray photoelectron spectroscopy analyses verified the mechanism by detecting a gradual decrease in Ti(C,N) peaks accompanied by a gradual increase of oxidised Ti (e.g. TiO2). It was likewise found that carbon in TiC mainly decomposes into carbonate species while the nitrogen in TiN remains elemental and likely escapes as nitrogen gas. Accordingly, Ti(C,N) behaves like a superposition of TiC and TiN with their individual oxidation behaviour, resulting in a highly corrosion resistant material.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Corrosion
- Ti(C
- N)
- CVD
- XPS
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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