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doi:10.22028/D291-40126
Titel: | Evolution of the True Contact Area of Laser Textured Tungsten Under Dry Sliding Conditions |
VerfasserIn: | Lechthaler, Björn Ochs, Georg Mücklich, Frank Dienwiebel, Martin |
Sprache: | Englisch |
Titel: | Frontiers in Mechanical Engineering |
Bandnummer: | 5 |
Verlag/Plattform: | Frontiers |
Erscheinungsjahr: | 2019 |
Freie Schlagwörter: | direct laser interference patterning dry friction in-situ tribometer real contact area asperity contacts |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Despite the great importance of the real contact area, it is a parameter which, depending on the tribological system, is difficult or impossible to obtain experimentally. In this work, a combination of methods was used to estimate the development of the real contact surface, and the results were compared with the friction coefficient course. The measurements were carried out with a home-built in situ tribometer, which records a 3D image of the surface after each individual friction cycle. A tungsten sample was treated by laser interference with a line-like pattern to produce a deterministic surface. This allowed for more precise tracking of the real contact area when combined with the use of an inert corundum sphere as a counter-body. The real contact area was calculated numerically from the height information obtained using a contact application. Finally, the true contact surface was compared with the parallel-recorded friction values. After a short running-in phase, the friction behavior and the real contact surface showed comparable courses. This indicates that the changes in the real contact area could explain the friction behavior of the laser-patterned sample, and the methodology was proven to be suitable for experimentally estimating the real contact area. |
DOI der Erstveröffentlichung: | 10.3389/fmech.2019.00003 |
URL der Erstveröffentlichung: | https://www.frontiersin.org/articles/10.3389/fmech.2019.00003 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-401269 hdl:20.500.11880/36120 http://dx.doi.org/10.22028/D291-40126 |
ISSN: | 2297-3079 |
Datum des Eintrags: | 17-Jul-2023 |
Bezeichnung des in Beziehung stehenden Objekts: | Supplementary Material |
In Beziehung stehendes Objekt: | https://www.frontiersin.org/articles/file/downloadfile/434845_supplementary-materials_datasheets_1_docx/octet-stream/Data%20Sheet%201.docx/2/434845 https://www.frontiersin.org/articles/file/downloadfile/434845_supplementary-materials_datasheets_1_zip/octet-stream/Data%20Sheet%201.zip/2/434845 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Materialwissenschaft und Werkstofftechnik |
Professur: | NT - Prof. Dr. Frank Mücklich |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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fmech-05-00003.pdf | 2,58 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons