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80904

INFLUENCE OF MAGNETIC FIELD ON THE SLIDING OF STEEL AGAINST LUBRICATED POLYAMIDE

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Last updated: 04 Jan 2025

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Abstract

ABSTRACT
The present work investigates the influence of magnetic field on the friction coefficient displayed by sliding of steel pin on polyamide disc lubricated by paraffin oil and dispersed by different lubricant additives such as zinc dialkyldithiophosphates (ZDDP), molybdenum disulphide (MoS2), heteropolar organic based additive (CMOC), graphite (C), detergent additive (calcium sulphonate) (DA), polytetrafluroethylene (PTFE) and polymethyl methacrylate  (PMMA).
 
Based on the experiments carried out in the present work, it was found that, at surfaces lubricated by paraffinic molecules friction coefficient decreased with increasing applied load. As the magnetic field increased friction coefficient increased. When the oil was dispersed by ZDDP additive significant decrease of friction was observed. The performance of ZDDP additive was not affected by application of the magnetic field. Dispersing Mo S2 or C in the lubricating oil caused significant friction increase. The effect of magnetic field on performance of MoS2 was insignificant, while magnetic field caused slight friction reduction in the presence of C. Magnetic field decreased friction coefficient when the oil was dispersed by CMOC. Under the action of magnetic field the force of adhesion significantly increased causing proper surface coating which caused the friction decrease. Oil dispersed by calcium sulphonate showed significant friction decrease due to the polarity of its molecules. Application of magnetic field caused further friction decrease. As a result of the quite good response of DA additive with magnetic field based on the values of friction coefficient observed for the oil dispersed by DA additive, it can be recommended to use this additive when magnetic field is applied. The good lubricating properties observed for PTFE additive can be from its ability to form a layer on the sliding surfaces. PTFE particles dispersed in the oil were much influenced by magnetic field, where the lowest value was displayed at the highest intensity of magnetic field. The same trend of friction decrease was observed for PMMA particles dispersed in oil.

DOI

10.21608/jest.2012.80904

Keywords

magnetic field, Friction coefficient, steel, polyamide, oil additives, polytetrafluroethylene, polymethyl methacrylate, molybdenum disulphide, zinc dialkyldithiophosphates and graphite

Authors

First Name

H.

Last Name

Zaini

MiddleName

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Affiliation

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

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First Name

A.

Last Name

Alahmadi

MiddleName

-

Affiliation

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

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Orcid

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First Name

S.

Last Name

Abdel-Sattar

MiddleName

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Affiliation

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

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Orcid

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First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

Current Address: Faculty of Engineering, Minia University, El-Minia, EGYPT., Faculty of Engineering, Taif University, Al-Taif, SAUDI ARABIA.

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Volume

9

Article Issue

1

Related Issue

12133

Issue Date

2012-01-01

Receive Date

2011-10-13

Publish Date

2012-01-01

Page Start

39

Page End

51

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 9_Issue 1_Pages 39-51.pdf

PDF . 542.9kB

Link

https://jest.journals.ekb.eg/article_80904.html

Detail API

https://jest.journals.ekb.eg/service?article_code=80904

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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

INFLUENCE OF MAGNETIC FIELD ON THE SLIDING OF STEEL AGAINST LUBRICATED POLYAMIDE

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Article

Created At

22 Jan 2023