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Tribofilm formation...
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Lindquist, MattiasUppsala universitet,Tillämpad materialvetenskap
(author)
Tribofilm formation and tribological properties of TiC and nanocomposite TiAlC coatings
- Article/chapterEnglish2009
Publisher, publication year, extent ...
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Elsevier BV,2009
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-96727
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-96727URI
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https://doi.org/10.1016/j.wear.2008.04.046DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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In a recent work a concept for self lubricating low friction TiC and nanocomposite TiAlC coatings was developed. Here we further investigate the mechanical and tribological properties of these coatings. Under identical deposition conditions, the addition of Al initiates the formation of a nanocomposite consisting of (Ti,Al)C grains in an amorphous carbon matrix. The coefficient of friction is lowered from 0.2 to below 0.1 in a pin-on-disc test against steel with unaffected coating wear rate. The lower friction is attributed to a more extensive formation of amorphous carbon and graphitisation on both the counter surface and in the coating wear track. The addition of Al also reduces coating hardness, Young's modulus and the residual stress, which can be explained by the weak carbide-forming ability of Al and the formation of a nanocomposite microstructure.
Subject headings and genre
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Low friction
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Graphitisation
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Nanocomposite
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PVD coating
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TECHNOLOGY
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TEKNIKVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Wilhelmsson, Ola
(author)
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Jansson, Ulf
(author)
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Wiklund, UrbanUppsala universitet,Tillämpad materialvetenskap(Swepub:uu)urbawikl
(author)
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Uppsala universitetTillämpad materialvetenskap
(creator_code:org_t)
Related titles
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In:Wear: Elsevier BV266:3-4, s. 379-3870043-16481873-2577
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