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80539

THE STRIBECK CURVE AND LUBRICATION CONDITIONS OF METALLIC AND POLYMERIC MATERIALS

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Last updated: 25 Dec 2024

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Abstract

ABSTRACT
The present work discusses the selection of metallic and polymeric materials to be used as bearings in water lubricated condition. The study depends on using Stribeck curve to compare the friction performance of metallic materials (aluminium, bronze and steel) as well as polymeric materials (polyamide, polyethylene terephthalate, polymethyl methacrylate and polytetrafluoroethylene) in boundary, mixed and hydrodynamic regimes. Experiments were carried out to investigate the friction coefficient of the tested materials under variable loads and sliding velocity in water lubricated medium.
 
It was found that, using Stribeck curve can provide specific information about friction coefficient of lubricating sliding in the boundary, mixed and hydrodynamic lubrication regimes. The lubricating conditions were controlled by controlling sliding velocity and load. Bronze and steel showed lower friction values than aluminum. Generally, values of friction coefficient were relatively high due the weak lubricating property of water. PTFE displayed the minimum friction coefficient (0.02). This result confirms the recommendation of PTFE as bearing material. The minimum friction values experienced by PA 6 and PETP were 0.083 and 0.07 respectively. Those polymers can be recommended to be used as bearing material in water lubricating medium. Usage of PMMA as bearing material should be avoided due to its high friction values.

DOI

10.21608/jest.2013.80539

Keywords

Stribeck curve, boundary, mixed, hydrodynamic conditions, water, metallic, polymeric materials

Authors

First Name

A. S.

Last Name

Al-Osaimy

MiddleName

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Affiliation

Faculty of Engineering, Taif University, Al – Taif, SAUDI ARABIA.

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Volume

10

Article Issue

2

Related Issue

12082

Issue Date

2013-04-01

Receive Date

2013-01-11

Publish Date

2013-04-01

Page Start

1

Page End

11

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 10_Issue 2_Pages 1-11.pdf

PDF . 624.7kB

Link

https://jest.journals.ekb.eg/article_80539.html

Detail API

https://jest.journals.ekb.eg/service?article_code=80539

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Original Article

Type Code

1,211

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Tribology

Publication Link

https://jest.journals.ekb.eg/

MainTitle

THE STRIBECK CURVE AND LUBRICATION CONDITIONS OF METALLIC AND POLYMERIC MATERIALS

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Article

Created At

22 Jan 2023