The effect of particles size and shape on erosion rates and erosion mechanisms of 5117 steels are investigated using slurry whirling-arm ring. Six different sized silica sand particles are used as erodent. These particles are characterized in terms of their average diameter, aspect ratio, and circularity factor. The measured average diameter varies from to . The wear tests are carried out at impact velocity of 15 m/s and 30 deg and 90 deg impact angles using a sand-water mixture of concentration. Analysis of erosion rates shows that there exists threshold energy of impacting particles at which a transition in erosion rate is noticed for sizes of . It is also observed that the erosion rate increases with the increase in shape factors (aspect ratio and circularity factor). The surface morphology of the eroded surface at impact of 30 deg shows that below , the erosion mechanism is indentation and material extrusion and above , the erosion mechanism is ploughing.
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January 2011
Technical Briefs
Particle Size Effects on Slurry Erosion of 5117 steels
A. Abouel-Kasem
A. Abouel-Kasem
Department of Mechanical Engineering, Faculty of Engineering,
e-mail: abouelkasem@yahoo.com
King Abdulaziz University
, 344 Rabigh 21911, Kingdom of Saudi Arabia
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A. Abouel-Kasem
Department of Mechanical Engineering, Faculty of Engineering,
King Abdulaziz University
, 344 Rabigh 21911, Kingdom of Saudi Arabiae-mail: abouelkasem@yahoo.com
J. Tribol. Jan 2011, 133(1): 014502 (7 pages)
Published Online: December 3, 2010
Article history
Received:
January 28, 2010
Revised:
September 9, 2010
Online:
December 3, 2010
Published:
December 3, 2010
Citation
Abouel-Kasem, A. (December 3, 2010). "Particle Size Effects on Slurry Erosion of 5117 steels." ASME. J. Tribol. January 2011; 133(1): 014502. https://doi.org/10.1115/1.4002605
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