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Wear testing with crossed cylinders - comparison of methods

  • Three different contact geometries, ball on disk and two different settings with crossed cylinders have been investigated with regard to the agreement of the results of the tribological quantities determined by each method. The material combination was α-alumina as upper specimen and steel 100Cr6 as lower specimen. For each of the contact geometries 5 independent measurements were carried out and evaluated independently. The agreement between the single results of coefficient of friction and the coefficient of system wear as well as between the different groups and conditions are good. Largest scatter of the results were found in the dry air regime where both friction and wear depend strongly on the relative humidity. However, comparison of the absolute values of the coefficient of wear between the ball on disk contact geometry on one side and the 2 crossed cylinder contact geometries on the other side reveals a significant difference in that the ball on disk results are lower by aboutThree different contact geometries, ball on disk and two different settings with crossed cylinders have been investigated with regard to the agreement of the results of the tribological quantities determined by each method. The material combination was α-alumina as upper specimen and steel 100Cr6 as lower specimen. For each of the contact geometries 5 independent measurements were carried out and evaluated independently. The agreement between the single results of coefficient of friction and the coefficient of system wear as well as between the different groups and conditions are good. Largest scatter of the results were found in the dry air regime where both friction and wear depend strongly on the relative humidity. However, comparison of the absolute values of the coefficient of wear between the ball on disk contact geometry on one side and the 2 crossed cylinder contact geometries on the other side reveals a significant difference in that the ball on disk results are lower by about a factor of two. The results document also a high degree of repeatability of single wear tests.zeige mehrzeige weniger

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Metadaten
Autor*innen:Rolf WäscheORCiD, Manfred Hartelt
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):16th International colloquium tribology - Lubricants, materials and lubrication engineering
Jahr der Erstveröffentlichung:2008
Herausgeber (Institution):Technische Akademie Esslingen (TAE)
Erste Seite:Paper 10_04_Wäsche, 1
Letzte Seite:6
Freie Schlagwörter:Contact geometry crossed cylinders; Fretting; Friction; Wear
Veranstaltung:16th International colloquium tribology - Lubricants, materials and lubrication engineering
Veranstaltungsort:Stuttgart/Ostfildern, Germany
Beginndatum der Veranstaltung:2008-01-15
Enddatum der Veranstaltung:2008-01-17
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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