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A Cavitation Erosion Model for Ductile Materials

Berchiche, Nabila and Franc, Jean-Pierre and Michel, Jean-Marie (2001) A Cavitation Erosion Model for Ductile Materials. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA. (Unpublished)

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An analytical model is proposed for the prediction of cavitation erosion of ductile materials. It is based upon a physical analysis of the work-hardening process due to the successive bubble collapses. The material is characterized by its classical stress-strain relationship and its metallurgical behaviour is analysed from microhardness measurements on cross sections of eroded samples. The flow aggressiveness is determined from pitting tests, using the material properties to go back to the impact loads. The histogram of impact loads is applied numerically a large number of times on the material surface and the evolution of the mass loss with the exposure time is computed. The approach is supported by experimental tests.

Item Type:Conference or Workshop Item (Lecture)
Record Number:CAV2001:sessionA3.001
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ID Code:46
Deposited By: Imported from CAV2001
Deposited On:08 May 2001
Last Modified:03 Oct 2019 22:49

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