Volume 9, Issue 3 (May 1981)

    Estimation of Cavitation Erosion with Incubation Periods and Material Properties

    CODEN: JTEOAD

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    Abstract

    A detailed study of the normalized correlations between the incubation period tc and the properties of various materials tested in a rotating disk device indicates that, at very high intensities, the strength properties influence the duration of tc. The analysis of extensive data from other laboratories for cavitation and liquid impingement erosion also indicates that, while both energy and strength properties influence the duration of tc, the latter ones predominate for a majority of cases. A fatigue-type failure occurs during tc. For estimating the time required to pierce a metallic specimen in a rotating device a relationship tp = 160 tc0.44 is proposed. A detailed study of normalized correlations between erosion resistance (inverse of erosion rate) and tc values of different materials tested in the rotating disk shows that correlations are good. Analysis of data from eight other investigators clearly points out the validity and the usefulness of this type of prediction.


    Author Information:

    Veerabhadra Rao, P
    Post doctoral fellow and professor, Georgia Institute of Technology, School of Civil Engineering, Atlanta, Ga.

    Martin, CS
    Post doctoral fellow and professor, Georgia Institute of Technology, School of Civil Engineering, Atlanta, Ga.

    Syamala Rao, BC
    Associate professor, Indian Institute of Science, Bangalore,

    Lakshmana Rao, NS
    Indian Institute of Science, Bangalore,


    Stock #: JTE11555J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11555J

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    Author
    Title Estimation of Cavitation Erosion with Incubation Periods and Material Properties
    Symposium , 0000-00-00
    Committee G02