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Performance improvement under boundary lubrication conditions using slider bearings with silicon nitride/steel in high torque hydraulic motors
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
2000 (English)In: Journal of tribology, ISSN 0742-4787, E-ISSN 1528-8897, Vol. 122, no 1, p. 348-353Article in journal (Refereed) Published
Abstract [en]

The influence of materials and surface topography on static and dynamic coefficients of friction was experimentally investigated in a test apparatus under boundary and mixed lubrication conditions. Specimen materials were gray iron and silicon nitride (Si3N4) of different surface topographies, sliding against chromium steel at a maximum Hertzian line contact pressure of 50 MPa. The lubricant was a standard mineral-based hydraulic fluid (ISO VG 68) held at +40°C or -28°C. The static and dynamic coefficients of friction under boundary lubrication conditions were both significantly reduced by the change from grey iron to silicon nitride as sliding material against Cr-steel, while the lowest static friction with Si3N4 was found for an intermediate surface roughness.

Place, publisher, year, edition, pages
2000. Vol. 122, no 1, p. 348-353
National Category
Other Mechanical Engineering Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Computer Aided Design; Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-8631DOI: 10.1115/1.555366ISI: 000084804800048Scopus ID: 2-s2.0-0033627426Local ID: 727a4070-b79b-11db-abff-000ea68e967bOAI: oai:DiVA.org:ltu-8631DiVA, id: diva2:981569
Note
Validerad; 2000; 20070208 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Isaksson, Ove

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