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Cavitation damage study with a rotating disk at the high peripheral velocities

Author(s): A. Shima; H. Tomaru; A. Ihara; N. Miura

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Abstract: The cavitation damage resistance of stainless steel is investigated using a newly constructed rotating disk apparatus at a relatively high peripheral speed of 65.4 m -77.6 m , and employing the test specimens with a through-hole to induce cavitation and a range to be eroded in a body. The main results obtained from the measurement of eroded loss weight and the observation of cavitation, are that the velocity exponent which indicates the damage due to cavitation has a tendency to increase with an increase in the peripheral speed, and that the velocity exponent obtained at the constant static pressure shows a larger value than those obtained at a constant cavitation number.


Year: 1992

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