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Carbon Based Coatings Deposited on Nitrided Stainless Steel: Study of Thermal Degradation
University of Tecnol Nacl UTN FRCU, Argentina.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Nanostructured Materials. Linköping University, Faculty of Science & Engineering.
INPE, Brazil.
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2017 (English)In: PROCEEDINGS OF THE 3RD PAN AMERICAN MATERIALS CONGRESS, SPRINGER INTERNATIONAL PUBLISHING AG , 2017, 57-66 p.Conference paper, Published paper (Refereed)
Abstract [en]

Amorphous hydrogenated carbon (DLC) coatings have a high hardness depending on the relative amount of sp(3)/sp(2) bondings. They also exhibit an extremely low friction coefficient and are chemically inert. However, these coatings have some disadvantages which limit their applications. For instance, adhesion is poor when they are deposited on metallic substrates and they are also unstable at high temperatures, degrading into graphite and loosing hardness. In this work, DLC coatings were deposited on precipitation hardening stainless steel (PH Corrax) which was plasma nitrided before the coating deposition. The samples were submitted to annealing treatments for an hour at different temperatures from 200 to 600 degrees C, together with a control group, which was only coated but not nitrided. After each annealing cycle, Raman Spectroscopy, nanoindentation and microscopy were used to check film properties. It was demonstrated that the nitriding pre treatment improved not only adhesion but also the thermal stability of the DLC, slowing degradation and preventing delamination.

Place, publisher, year, edition, pages
SPRINGER INTERNATIONAL PUBLISHING AG , 2017. 57-66 p.
Series
Minerals Metals & Materials Series, ISSN 2367-1181
Keyword [en]
DLC films; Thermal degradation; Duplex treatment; Plasma nitriding
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:liu:diva-139661DOI: 10.1007/978-3-319-52132-9_6ISI: 000405307700006ISBN: 978-3-319-52132-9 (electronic)ISBN: 978-3-319-52131-2 (print)OAI: oai:DiVA.org:liu-139661DiVA: diva2:1133663
Conference
3rd Pan American Materials Congress (PAMC)
Available from: 2017-08-16 Created: 2017-08-16 Last updated: 2017-08-16

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Ghafoor, NaureenRogström, LinaOdén, Magnus
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NB
  • sv-SE
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More languages
Output format
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