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114477

STEPWISE EROSION AS A METHOD FOR INVESTIGATING THE WEAR MECHANISMS AT DIFFERENT IMPACT ANGLES IN SLURRY EROSION

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Mechanical, Power, Production, Design and Mechatronics Engineering.

Abstract

In the present work, stepwise erosion technique was carried out to investigate in detail the influence of impact angle on the erosion process of AISI 5117 steel. The impact sites number and their morphology at different impact angles were investigated using SEM examination and image analysis. In addition, the SEM images of eroded surface using stepwise technique were used presented for better understanding of material removal at different angles. The tests were carried out with particle concentration of 1 wt %, and the impact velocity of slurry stream was 15 m/s. Silica sand has a nominal size range of 250 – 355 µm was used as an erodent, using whirling-arm test rig. The results showed that the number of craters as expected increases with the increase in the mass of erodent for all impact angles and that this number decreases with the increase of the impact angle. In addition, the counted number of craters is larger than the calculated number of particles for all impact angles and at any stage. The effect of impact angle based on the impact crater shape can be divided into two regions; the first region for θ ≤ 60o and the second region for θ ≥ 75o. In the first region the length of the tracks decreases with the increase of impact angle. The calculated size ranges from few micrometers to 100 micrometer for the first region and to 50 micrometers in the second region. Chipping of the former impact sites by subsequent impact particles plays important role in developing erosion.

DOI

10.21608/jesaun.2012.114477

Keywords

Slurry erosion, Impact angle, Number of impact sites, Eroded surface, Erosion mechanisms, AISI 5117steel, Particles rebound effect

Authors

First Name

Y. M.

Last Name

Abd-Elrhman

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering, Assiut University, Assiut 71516, Egypt

Email

y_mahmoud_a@hotmail.com

City

-

Orcid

-

First Name

A.

Last Name

Abouel-Kasem

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Eng.-Rabigh, King Abdulaziz University, P.O. Box 344, Rabigh 21911, Saudi Arabia; Department of Mechanical Engineering, Assiut University, Assiut 71516, Egypt

Email

abouelkasem@yahoo.com

City

-

Orcid

-

First Name

S. M.

Last Name

Ahmed

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering, Majmaah University ,Saudi Arabia

Email

shemy2007@yahoo.com

City

-

Orcid

-

First Name

K.M.

Last Name

Emara

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering, Assiut University, Assiut 71516, Egypt

Email

emara@aun.edu.eg

City

-

Orcid

-

Volume

40

Article Issue

No 4

Related Issue

16870

Issue Date

2012-07-01

Receive Date

2012-04-07

Publish Date

2012-07-01

Page Start

1,057

Page End

1,074

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 4_Pages 1057-1074.pdf

PDF . 1.1MB

Link

https://jesaun.journals.ekb.eg/article_114477.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114477

Order

7

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

STEPWISE EROSION AS A METHOD FOR INVESTIGATING THE WEAR MECHANISMS AT DIFFERENT IMPACT ANGLES IN SLURRY EROSION

Details

Type

Article

Created At

23 Jan 2023