Performance Improvement Under Boundary Lubrication Conditions Using Slider Bearings With Silicon Nitride/Steel in High Torque Hydraulic Motors-Reference-Cited by-同舟云学术

Performance Improvement Under Boundary Lubrication Conditions Using Slider Bearings With Silicon Nitride/Steel in High Torque Hydraulic Motors

Published:1999-07-14 Issue:1 Volume:122 Page:348-353
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Isaksson O.¹,Larker R.²

Affiliation:

1. Division of Machine Elements, Lulea˚ University of Technology, S-971 87 Lulea˚, Sweden

2. R&D Division, Indexator AB, S-922 21 Vindeln, Sweden

Abstract

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. [S0742-4787(00)04601-4]

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/122/1/348/5822316/348_1.pdf

Reference22 articles.

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