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    Volume 2, Issue 1 (March 2013)

    Catastrophic Failure in Cavitation Erosion Testing

    (Received 31 August 2012; accepted 8 February 2013)

    Published Online: 04 March 2013


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    Catastrophic failure of metallic test specimens under cavitation erosion conditions is evidenced by an increasing rate of material loss. The typical cumulative erosion–time curve for this type of failure is denoted as type C. This type of failure depends on the characteristics of the test material, the test method, and the severity of the test conditions. A review of 264 cavitation erosion–time curves, produced via seven test methods, reveals that type C curves are found with 18 % of the specimens and 58 % of the tests performed via the rotating disc test method. This study shows that type C erosion–time curves can be modeled, analyzed, and extrapolated by means of the transient response erosion model. The two main conclusions from this study are that (i) ductile metallic materials are vulnerable to catastrophic erosion failure under severe cavitation erosion conditions, and (ii) the most effective erosion test method for the detection and classification of these materials and conditions is the rotating disc method.

    Author Information:

    Meged, Y.

    Formerly Senior Research Engineer, Tribology Group of the Dept. of Mechanical Engineering, Univ. of Twente, Enschede,

    Stock #: MPC20120032


    DOI: 10.1520/MPC20120032

    Title Catastrophic Failure in Cavitation Erosion Testing
    Symposium ,
    Committee A06