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40652

Production and Characterization of AA7075-Graphite Composite Using Friction Stir Processing

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Metallurgical and Materials Engineering

Abstract

AA 7075 Aluminum alloy has been received a special attention in aerospace and transportation industries because it provides a good combination of strength, ductility, and toughness. In this study, friction stir processing (FSP) technique is used to produce a self-lubricating AA7075/graphite composite. The composite was produced at different rotating speeds of 400, 800, and 1200 rpm with a constant traveling speed of 50 mm/min and 3⁰ tilt angle applied for one and two passes for each condition. Optical microscopy (OM), and scanning electron microscopy (SEM) were used to investigate microstructure. Vickers hardness and wear testing were conducted to the composite specimens. It was obtained that the dispersion of graphite particles in the AA7075 Al alloy enhanced by increasing both rotating speed and number of passes. The produced AA7075/graphite composite showed higher hardness and wear resistance than the AA7075 base alloy. The highest hardness value (156.2 Hv) was gained for the produced AA7075/graphite composite at 800 rpm rotating speed after FSP second pass comparing to base metal (79 Hv). Whereas, the higher wear resistance value was obtained for the processed composite at 800 rpm after the FSP first pass.

DOI

10.21608/jpme.2018.40652

Keywords

AA7075 Al alloy/graphite composite, Friction stir processing, Microstructure, Mechanical Properties

Authors

First Name

Osama

Last Name

Awad

MiddleName

M.

Affiliation

Nasr Petroleum Company, Suez, Egypt

Email

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City

-

Orcid

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First Name

Mohamed

Last Name

Seleman

MiddleName

M. El-Sayed

Affiliation

Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, 43511, Suez, Egypt Suez and Sinai Metallurgical and Materials Research Center of Scientific Excellence (SSMMR-CSE), 43511 Suez, Egypt

Email

-

City

-

Orcid

-

First Name

M.

Last Name

Ahmed

MiddleName

M. Z.

Affiliation

-Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, 43511, Suez, Egypt -Suez and Sinai Metallurgical and Materials Research Center of Scientific Excellence (SSMMR-CSE), 43511 Suez, Egypt -The British University in Egypt, Mechanical Engineering Department, El-Sherouk City 11837, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

H.

Last Name

Ammar

MiddleName

R.

Affiliation

-Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, 43511, Suez, Egypt -Suez and Sinai Metallurgical and Materials Research Center of Scientific Excellence (SSMMR-CSE), 43511 Suez, Egypt

Email

-

City

-

Orcid

-

Volume

20

Article Issue

1

Related Issue

6129

Issue Date

2018-12-01

Receive Date

2018-07-12

Publish Date

2018-12-01

Page Start

101

Page End

110

Print ISSN

1110-6506

Online ISSN

2682-3292

Link

https://jpme.journals.ekb.eg/article_40652.html

Detail API

https://jpme.journals.ekb.eg/service?article_code=40652

Order

11

Type

Full-length article

Type Code

934

Publication Type

Journal

Publication Title

Journal of Petroleum and Mining Engineering

Publication Link

https://jpme.journals.ekb.eg/

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Details

Type

Article

Created At

22 Jan 2023