[PDF] Some Studies On The Vibratory Cavitation Erosion Testing Of Metals eBook

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Modeling of Vibratory Cavitation Erosion Test Results by a Weibull Distribution

Author : Y. Meged
Publisher :
Page : 10 pages
File Size : 45,24 MB
Release : 2003
Category : Modeling
ISBN :

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The rate of mass loss in vibratory cavitation erosion tests varies with time. As a consequence, this process is treated empirically. It is suggested by the author that the cumulative mass loss-time curve test results can be represented accurately by the Weibull cumulative distribution function. This model was verified for 26 tests of nine metals. Among these metals is Ni 200, which is a standard reference material for erosion tests. This model allows treating the results of vibratory cavitation erosion tests analytically, thereby obtaining invaluable information from the test data.

Comments on Erosion Tests Conducted in an ASTM Interlaboratory Test Program

Author : K. Steller
Publisher :
Page : 8 pages
File Size : 42,5 MB
Release : 1979
Category : Aluminum
ISBN :

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New results from the Polish Academy of Sciences are compared with previously published results of an ASTM interlaboratory test of the erosion effects of vibratory cavitation and liquid impact facilities on three metals. In the studies reported here vibratory and rotating disk facilities were used. A new evaluation of the results of all the tests and corresponding scaling effects has been made, and the results of erosion tests using the vibratory method, the rotating disk method, and the liquid impact method have been compared.

Cavitation Erosion Performance of Steel, Ceramics, Carbide, and Victrex PEEK Materials

Author : Spencer Court
Publisher :
Page : 14 pages
File Size : 16,22 MB
Release : 2018
Category : Cavitation erosion
ISBN :

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Cavitation erosion has to be taken into consideration during material selection in many industrial sectors, e.g., offshore, marine, and oil and gas, in which components operate under severe working conditions. The cavitation erosion equipment, located at the University of Southampton, uses a vibratory apparatus to compare, rank, and characterize the cavitation erosion performance of materials. This article highlights some of the results obtained from industrial research (consultancy) work employing a Hielscher UIP1000hd 20 kHz ultrasonic transducer (Hielscher Ultrasonics GmbH, Teltow, Germany). The transducer is attached to a titanium horn to induce the formation and collapse of cavities in a liquid, creating erosion (material loss) of the specimen undergoing testing. The results from erosion cavitation testing (in accordance with ASTM G32-16, Standard Test Method for Cavitation Erosion Using Vibratory Apparatus (Superseded)) of two commercially available steels are presented herein and are shown to have less resistance to cavitation when compared to polyether(ether ketone), ceramic, and carbide materials. These materials are presented, along with Nickel 200, which was used to normalize the results. A plot of cumulative erosion versus exposure time was determined by periodic interruption of the test.