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Research Papers: Friction & Wear

Investigation of Temperature Effects on Cavitation Erosion Behavior Based on Analysis of Erosion Particles

[+] Author and Article Information
B. Saleh

Department of Mechanical Engineering, Assiut University, Assiut 71516, Egyptb_saleh@yahoo.com

A. Abouel-Kasem1

Department of Mechanical Engineering, Assiut University, Assiut 71516, Egyptabouelkasem@yahoo.com

A. Ezz El-Deen

Department of Mechanical Engineering, Assiut University, Assiut 71516, Egyptahmed_ezz@yahoo.com

S. M. Ahmed

Department of Mechanical Engineering, Assiut University, Assiut 71516, Egyptshemy2007@yahoo.com

1

Corresponding author.

J. Tribol 132(4), 041601 (Sep 10, 2010) (6 pages) doi:10.1115/1.4002069 History: Received December 10, 2009; Revised June 15, 2010; Published September 10, 2010; Online September 10, 2010

The effect of temperature on the wear particles produced by vibratory cavitation erosion tests on Al-99.92 in distilled water was analyzed. Scanning electron microscope images of wear particles were obtained, forming a database for further analysis. This study showed that the variation of average particle size with temperature was very much similar to the variation of weight loss with temperature. The average particle size was maximum at 40°C. It was also observed that the average particle size was time dependent. The particle’s morphology features revealed that the predominant erosion mechanism was fatigue failure, irrespective of the temperature.

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Figures

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Figure 1

Schematic view of the test apparatus

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Figure 2

Erosion pattern on the stationary Al-99.92 specimens at a test time of 11 min and different temperatures of 10°C, 20°C, 30°C, 40°C, 50°C, and 60°C

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Figure 3

Damage area as function of temperature at a test time of 11 min

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Figure 4

Weight loss of stationary Al-99.92 specimens (a) as function of test time for different temperatures and (b) as function of temperature for different test times

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Figure 5

Scanning electron photomicrographs of eroded surfaces after 2 min for the stationary Al-99.92 specimens at different temperatures

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Figure 6

(a) Scanning electron photomicrographs of particle removed for Al-99.92 at different temperatures and at test time of 2 min. (b) Scanning electron photomicrographs of particle removed for Al-99.92 at different temperatures and at test time 5 min. (c) Scanning electron photomicrographs of particle removed for Al-99.92 at different temperatures and at test time 11 min.

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Figure 7

Variation of the average particle size with temperature at test time of (a) 2 min and (b) 11 min

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