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Changes of Subsurface Structure of Materials Developed during Sliding Friction

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Abstract:

It is well known that during sliding friction the properties of rubbing surfaces are changed owing to transformations caused by applied loads, friction and wear processes. In the last years many research works were devoted to reveal the properties of the surfaces transformed during the friction and wear at the Budapest University of Technology and Economics in the Department of Machine Design. During these investigations the conditions of developing beneficial transformed surface layers and their operating boundaries were determined by experiments on metal sliding pairs in laboratory. The conditions of evolving large-scale adhesion junctions, scuffing and seizure were investigated on heavy-loaded surfaces at slow sliding velocity. During the experiments hard steel balls slid on dry or lubricated metal disks. Coefficient of friction and wear tracks were measured and structures and damages of sliding surfaces were evaluated using profilometry, SEM and normal microscope photographs, and micro-hardness measurement.

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Periodical:

Materials Science Forum (Volumes 537-538)

Pages:

315-320

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.537-538.315

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Online since:

February 2007

Authors:

P. Bollók, M. Kozma

Keywords:

Pin-on-Disc Machine, Plastic Deformation, Second Phase, Sliding Friction, Tribologically Transformed Layers, Work-Hardening

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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