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189026

TRIBOLOGICAL BEHAVIOUR OF STEEL LUBRICATED BY GREASE FILLED BY POLYMERIC ADDITIVES

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Last updated: 25 Dec 2024

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Abstract

In the present work, the effect of applying negative electric (DC) current on the friction and wear of carbon steel in presence of calcium-based grease dispersed by polymeric materials such as polyethylene (PE), polytetrafluoroethylene (PTFE) and polymethyl methacrylate (PMMA) is discussed. The experiments were carried out on cross pin wear tester under external negative DC electric current, -1.5, -3.0, -4.5 and -6.0 volts.
 
Based on the experimental results, it can be concluded that, the effect of polymeric particles dispersed in grease depends on the ability of polymeric particles to adhere into the contact surfaces. Friction coefficient with applied external negative current increase with increasing polymer content at the polymer have negative polarity. PMMA shows the significant effect on reduction friction coefficient and wear at negative current. It can be recommended that selection of polymeric materials based on the polarity and location in tribo-electric series, for dispersing greases.

DOI

10.21608/jest.2021.189026

Keywords

Calcium Grease, PE, PTFE, PMMA

Authors

First Name

M.

Last Name

Bakry

MiddleName

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Affiliation

Deptment of mechanical engineering, faculty of Engineering, Aswan University, Aswan, EGYPT.

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First Name

A. M.

Last Name

Samy

MiddleName

-

Affiliation

Deptmnt of production engineering and mechanical design, faculty of Engineering, Minia University, El-Minia, EGYPT.

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-

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Orcid

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First Name

A.

Last Name

Nabhan

MiddleName

-

Affiliation

Deptmnt of production engineering and mechanical design, faculty of Engineering, Minia University, El-Minia, EGYPT.

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-

City

-

Orcid

-

First Name

A.

Last Name

Rashed

MiddleName

-

Affiliation

Deptmnt of production engineering and mechanical design, faculty of Engineering, Minia University, El-Minia, EGYPT.

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Volume

18

Article Issue

3

Related Issue

27114

Issue Date

2021-07-01

Receive Date

2021-05-03

Publish Date

2021-07-01

Page Start

11

Page End

12

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 18_Issue 3_Pages 11-12.pdf

PDF . 858.1kB

Link

https://jest.journals.ekb.eg/article_189026.html

Detail API

https://jest.journals.ekb.eg/service?article_code=189026

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2

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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

TRIBOLOGICAL BEHAVIOUR OF STEEL LUBRICATED BY GREASE FILLED BY POLYMERIC ADDITIVES

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Article

Created At

22 Jan 2023