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INFLUENCE OF HEAT TREATMENT ON FRICTION AND WEAR OF UNALLOYED DUCTILE IRON

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Last updated: 25 Dec 2024

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Abstract

ABSTRACT
Ductile iron is cast iron in which the graphite is present as spheres (nodules). This produces material which has high strength, ductility, thermal shock resistance, and wear resistance with good castability, damping capacity, machinability, and self lubricating as a combination of steel and cast iron properties. Previous works showed that the main factor affecting the mechanical properties of ductile iron is structure. Ductile iron structure is controlled by alloying elements or heat treatment or both.
 
In this study the effect of heat treatment on friction coefficient and wear of unalloyed ductile iron was investigated.  The heat treatment processes applied in the present work were normalizing, compressed air quenching, oil quenching, water quenching, and austempering. The tribological behaviour of the tested specimens was evaluated by scratch test through measuring scratch width and calculating friction coefficient as well as hardness.
 
Baesd on the experiments carried out in the present work, it was found that heat treatment of unalloyed cast iron improved the hardness, wear resistance and reduced friction coefficient. Besides, quenching ductile irons in water and oil caused the highest increase in hardness and wear resistance and recorded the minimum values of friction coefficient. Good increase in wear resistance and reduction in friction coefficient were displayed by austempering ductile irons.

DOI

10.21608/jest.2012.80906

Keywords

Friction, Wear, hardness, scratch test, unalloyed ductile cast iron, Heat treatment

Authors

First Name

I. A.

Last Name

Mohamed

MiddleName

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Affiliation

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

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Orcid

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First Name

A. A.

Last Name

Ibraheem

MiddleName

-

Affiliation

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

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City

-

Orcid

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First Name

M. I.

Last Name

Khashaba

MiddleName

-

Affiliation

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

Email

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City

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Orcid

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First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

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

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Volume

9

Article Issue

1

Related Issue

12133

Issue Date

2012-01-01

Receive Date

2011-11-07

Publish Date

2012-01-01

Page Start

52

Page End

64

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 9_Issue 1_Pages 52-64.pdf

PDF . 755.1kB

Link

https://jest.journals.ekb.eg/article_80906.html

Detail API

https://jest.journals.ekb.eg/service?article_code=80906

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5

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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 HEAT TREATMENT ON FRICTION AND WEAR OF UNALLOYED DUCTILE IRON

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Article

Created At

22 Jan 2023