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An investigation of...
An investigation of the corrosion resistances of magnetron sputtered TaW-rich, Nb-rich, and multicomponent CrNbTaTiW alloys
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- Srinath, Aishwarya, 1991- (författare)
- Uppsala universitet,Oorganisk kemi,Inorganic Chemistry
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Fritze, Stefan (författare)
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Korvela, Marcus (författare)
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visa fler...
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Rehnlund, David (författare)
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Malinovskis, Paulius (författare)
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von Fieandt, Kristina (författare)
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Pan, Ruijun (författare)
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Pettersson, Jean (författare)
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Sternhagen, Victoria (författare)
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Riekehr, Lars (författare)
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Lewin, Erik (författare)
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Lindblad, Rebecka (författare)
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Jansson, Ulf (författare)
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Nyholm, Leif (författare)
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The corrosion resistances of magnetron sputtered nearequimolar, TaW-rich, and Nb-rich CrNbTiTaW alloys, with and without 8 at.% carbon, were studied in aqueous chloride-containing environments. Electrochemical tests and scanning electron images showed that all the CrNbTaTiW alloys were highly corrosion resistant in 1.0 M HCl. The results conclusively showed that passivated nearequimolar CrNbTaTiW coatings have comparable corrosion performances to passivated Nb- and TaW-rich alloys in 0.01 M HCl + 0.1 M NaCl. Carbon affected the rate of surface repassivation in polarisation measurements of the films whose oxide had been partially reduced, but had a minor influenceon the corrosion resistances once a mature oxide was formed. No conclusive relationships between microstructure and corrosion resistance were established. The comparable corrosion resistances of the multicomponent CrNbTiTaW, Nb-rich and TaW-rich alloys were attributed to the presence of extremely stable surface oxides of Nb and Ta which prevented losses of Ti and Cr. The near surface regions of all the alloys before and after corrosion appeared to be depleted in W compared to the bulk.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Corrosion
- Kemi med inriktning mot materialkemi
- Chemistry with specialization in Materials Chemistry
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)
- Av författaren/redakt...
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Srinath, Aishwar ...
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Fritze, Stefan
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Korvela, Marcus
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Rehnlund, David
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Malinovskis, Pau ...
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von Fieandt, Kri ...
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visa fler...
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Pan, Ruijun
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Pettersson, Jean
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Sternhagen, Vict ...
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Riekehr, Lars
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Lewin, Erik
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Lindblad, Rebeck ...
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Jansson, Ulf
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Nyholm, Leif
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
- Av lärosätet
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Uppsala universitet