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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/441

Title: Cavitation erosion of copper and aluminium in water at elevated-temperature
Authors: Auret, JG
Damm, OFRA
Wright, GJ
Robinson, FPA
Keywords: Cavitation erosion
Elevated temperatures
Temperature related material effects
Aluminium samples
Copper samples
Issue Date: Dec-1993
Publisher: Butterworth-Heinemann Ltd
Citation: Auret, JG, et al. 1993. Cavitation erosion of copper and aluminium in water at elevated-temperature. Tribology international, vol. 26(6), pp 421-429
Abstract: Cavitation erosion tests were carried out in tap water on aluminium and copper samples in a rotating disk cavitations test apparatus, to study the effect of water temperature on cavitation dynamics and cavitation erosion. A shift in the position of the erosion zone with changing temperature was observed. This was explained in terms of the effect of temperature on the pressure gradient giving rise to cavitation. As had been found for vibratory cavitation, the erosion rate in this case (flow cavitation) increased with increasing water temperature and reached a maximum at approximately 65°C. However, in contrast to copper, which exhibited the usual behaviour, the erosion rate of aluminium did not decrease with further temperature increase. This apparent anomaly was investigated by employing specially developed cells for corrosion rate and temperature measurements on a cavitating aluminium sample. It was found that an increase in corrosion rate was mainly responsible for the high cavitation erosion rate at temperatures above 50°C.
URI: http://hdl.handle.net/10204/441
ISSN: 0301-679x
Appears in Collections:Manufacturing science and technology
General science, engineering & technology

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