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Modeling of worn surface topography formed in a low wear process

Identifieur interne : 000963 ( Main/Exploration ); précédent : 000962; suivant : 000964

Modeling of worn surface topography formed in a low wear process

Auteurs : Rafal Reizer [Pologne] ; Pawel Pawlus [Pologne] ; Lidia Galda [Pologne] ; Wieslaw Grabon [Pologne] ; Andrzej Dzierwa [Pologne]

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Mots-clés :

Abstract

Two batches of experiments are described in this paper. The first tests were conducted on a reciprocating tester. Specimens were cut from cylinder liners from gray cast iron of hardness 2128 MPa after honing or plateau honing. They co-acted with counter-specimens made from chromium-coated steel C45. Lubricating fluid was supplied to the contact zone. The second tests were carried out on a block-on ring tester. Stationary block prepared from cast iron with a hardness value of 5356 MPa was ground. Rotating rings made from steel of 2992 MPa hardness were modified by a burnishing technique to obtain surfaces with dimples. The tested sliding pair was lubricated. The abrasive wear resistance tests were conducted under artificially increased dustiness conditions. Two types of worn surface topography modeling were used. For cylinder liners tests random one-directional Gaussian surface topography was imposed on the base surface (after honing). Worn surfaces of textured steel rings were modeled by simulation of actions of abrasive particles. After each kind of simulation selected parameters of measured and modeled surface textures were compared. We found that measured and simulated surfaces were correctly matched in the majority of cases.


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<term>Abrasive wear</term>
<term>Burnishing</term>
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<term>Chromium steels</term>
<term>Contact surface</term>
<term>Cylinder liner</term>
<term>Experimental study</term>
<term>Geometrical model</term>
<term>Grey iron</term>
<term>Grinding</term>
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<term>Lubrication</term>
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<term>Modeling</term>
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<term>Reciprocating movement machine</term>
<term>Sliding contact</term>
<term>Sliding wear</term>
<term>Stationary condition</term>
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<term>Wear resistance</term>
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<term>Tribologie</term>
<term>Usure glissement</term>
<term>Dureté</term>
<term>Affûtage fin</term>
<term>Usinage</term>
<term>Contact glissant</term>
<term>Lubrification</term>
<term>Usure abrasive</term>
<term>Résistance usure</term>
<term>Machine mouvement alternatif</term>
<term>Chemise cylindre</term>
<term>Fonte grise</term>
<term>Métal moulé</term>
<term>Rectification surface</term>
<term>Acier chrome</term>
<term>Surface contact</term>
<term>Brunissage</term>
<term>Etat surface</term>
<term>Modèle géométrique</term>
<term>Modélisation</term>
<term>Condition stationnaire</term>
<term>Etude expérimentale</term>
<term>Essai usure</term>
<term>Surface aléatoire</term>
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<front>
<div type="abstract" xml:lang="en">Two batches of experiments are described in this paper. The first tests were conducted on a reciprocating tester. Specimens were cut from cylinder liners from gray cast iron of hardness 2128 MPa after honing or plateau honing. They co-acted with counter-specimens made from chromium-coated steel C45. Lubricating fluid was supplied to the contact zone. The second tests were carried out on a block-on ring tester. Stationary block prepared from cast iron with a hardness value of 5356 MPa was ground. Rotating rings made from steel of 2992 MPa hardness were modified by a burnishing technique to obtain surfaces with dimples. The tested sliding pair was lubricated. The abrasive wear resistance tests were conducted under artificially increased dustiness conditions. Two types of worn surface topography modeling were used. For cylinder liners tests random one-directional Gaussian surface topography was imposed on the base surface (after honing). Worn surfaces of textured steel rings were modeled by simulation of actions of abrasive particles. After each kind of simulation selected parameters of measured and modeled surface textures were compared. We found that measured and simulated surfaces were correctly matched in the majority of cases.</div>
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<name sortKey="Reizer, Rafal" sort="Reizer, Rafal" uniqKey="Reizer R" first="Rafal" last="Reizer">Rafal Reizer</name>
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