ManageChatDiscover
80283

INFLUENCE OF HEAT TREATMENT ON THE FRICTION AND WEAR OF POLYURETHANE COATINGS

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

ABSTRACT
The friction coefficient and wear resistance of polyurethane coatings were investigated in the present work. Scratch test was carried out to determine the friction coefficient and wear scar width of the tested coatings. Heat treatment processes such as annealing, tempering and quenching were carried out to study their effect on the tribological properties of the tested coatings.
 
It was found that, at temperature of heat treatment of 50 °C, friction coefficient significantly increased with increasing normal load. Annealed polyurethane of single layer coating displayed the lowest wear. When the coating thickness increased up to 0.5 mm (double layer) significant friction decrease was observed. Annealed coatings displayed the lowest friction values, while as received ones showed the highest values. Friction coefficient displayed by triple layers polyurethane coating recorded higher friction for quenched test specimens followed by tempered and annealed ones.For temperature of heat treatment of 75 °C significant increase in friction coefficient was predicted. Polyurethane coating of double layers showed the lowest friction coefficient values compared to single and triple layers. Friction coefficient displayed by the scratch of triple layers polyurethane showed slight friction increase. Quenched coatings represented the highest values, while annealed ones showed the lowest ones.
 
Wear displayed by the scratch of single layer annealed polyurethane that heat treated at 50 °C showed the lowest wear. Quenched coatings displayed relatively higher wear than tempered and annealed coatings. Wear displayed by double layer polyurethane showed relatively lower values than that observed for 0.2 mm coatings. Quenched coatings displayed the highest wear values followed by the tempered coatings. Wear of triple layer polyurethane showed slight increase compared to double layers coatings. When the temperature of heat treatment increased to 75 °C, slight increase in wear for single layer polyurethane coatings was observed. Annealed coatings showed the lowest wear. Wear displayed by triple layers (0.8 mm) polyurethane represented the lowest values compared to single and double layers coatings. Annealed coatings showed the lowest wear values.

DOI

10.21608/jest.2014.80283

Keywords

Heat treatment, polyurethane coatings, friction and wear

Authors

First Name

M. K.

Last Name

Mohamed

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT,

Email

-

City

-

Orcid

-

First Name

A. M.

Last Name

Samy

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT,

Email

-

City

-

Orcid

-

First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT,, Faculty of Engineering, Taif University, Al –Taif, Saudi Arabia.

Email

-

City

-

Orcid

-

Volume

11

Article Issue

1

Related Issue

12047

Issue Date

2014-01-01

Receive Date

2013-09-08

Publish Date

2014-01-01

Page Start

46

Page End

57

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 11_Issue 1_Pages 46-57.pdf

PDF . 659.7kB

Link

https://jest.journals.ekb.eg/article_80283.html

Detail API

https://jest.journals.ekb.eg/service?article_code=80283

Order

5

Type

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 HEAT TREATMENT ON THE FRICTION AND WEAR OF POLYURETHANE COATINGS

Details

Type

Article

Created At

22 Jan 2023