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  4. Evaluation of silicon-modified DLC coatings in a dry sliding contact against aluminum EN AW-5083
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00105201-18

Evaluation of silicon-modified DLC coatings in a dry sliding contact against aluminum EN AW-5083

Veröffentlichungsdatum
2016
Autoren
Abraham, Tim  
Herausgeber
Vollertsen, Frank  
Zusammenfassung
Diamond-like carbon (DLC) coatings are known to reduce friction and wear. In a dry contact with steel the tribological behavior can be further optimized by adding a certain concentration of silicon to the amorphous hydrogenated carbon coatings structure (a-C:H:Si). However, in a dry contact with aluminum the tribological performance of a-C:H:Si coatings and the optimal silicon concentration is still unknown. In order to define an optimum regarding the silicon concentration, a-C:H:Si-coatings with different silicon contents were deposited on 1.2379 tool material by plasma assisted chemical vapor deposition (PACVD) technology. Tribometer tests were used to analyze the friction and adhesive wear behavior against EN AW 5083 aluminum. Additional, strip drawing were conducted tests to investigate the efficiency of the different silicon contents with a higher proximity to industrial processes. The tests showed a deteriorating friction behavior of the a-C:H:Si coatings with an increase of the silicon concentration. Superposing wear mechanisms between the silicon and the aluminum were determined by a subsequent investigation of the wear tracks as an explanation for the tribological behavior.
Schlagwörter
Coatings, DLC, aluminum, wear, friction, dry forming
Institution
Universität Bremen  
Fachbereich
Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04)  
Institute
BIAS - Bremer Institut für angewandte Strahltechnik GmbH  
Dokumenttyp
Artikel/Aufsatz
Zeitschrift/Sammelwerk
Dry Metal Forming Open Access Journal  
Band
Volume 2
Zweitveröffentlichung
Nein
Sprache
Deutsch
Dateien
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Vorschaubild
Name

00105201-1.pdf

Size

1.1 MB

Format

Adobe PDF

Checksum

(MD5):58ace6d0d8150fe41787c612da73d320

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