Kinetics of the Change in the Surface Profile of Aluminum Bronzes during Cavitation Wear
Autor: | E. O. Gorbachenko, Y. N. Tsvetkov |
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Rok vydání: | 2018 |
Předmět: |
Materials science
Kinetics chemistry.chemical_element Magnetostriction 02 engineering and technology Surface finish 021001 nanoscience & nanotechnology Surfaces Coatings and Films 020303 mechanical engineering & transports Amplitude 0203 mechanical engineering Fresh water chemistry Mechanics of Materials Aluminium Cavitation Composite material 0210 nano-technology Intensity (heat transfer) |
Zdroj: | Journal of Friction and Wear. 39:222-226 |
ISSN: | 1934-9386 1068-3666 |
DOI: | 10.3103/s1068366618030042 |
Popis: | Aluminum bronzes used in manufacturing ship propellers have been tested for cavitation wear using magnetostrictive vibrator in fresh water. The cavitation attack intensity was varied by changing the amplitude of horn end oscillations from 15 to 25 µm. It has been demonstrated that, within the incubation period of the cavitation wear, the arithmetic mean deviation Ra of the assessed profile, which is the parameter of roughness height, increases as linear function of the test duration. The Ra value that corresponds to the end of the incubation period is constant and does not depend on the cavitation attack intensity. The revealed characteristic properties allow the profile measurements to be used in predicting the duration of the incubation period for the cavitation wear of aluminum bronzes. |
Databáze: | OpenAIRE |
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