On the reliability of creep damage assessment of power plant steam pipings

Pertti Auerkari, Paula Vierros, Jorma Salonen

    Research output: Book/ReportReport


    The replica technique is an attractive method for the assessment of safety and minimum life time of creep loaded power plant components. This technique must be applied with care to ensure the observation of maximum creep damage since the replica inspections are spotwise in character. If properly carried out, the replica method has the advantage of not necessarily requiring information about the stress and temperature history of the components. The assessment rules that are used for the first inspections are conservative enough but even more damage can usually be tolerated especially in small and old power plants.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages23
    ISBN (Print)951-38-1952-3
    Publication statusPublished - 1984
    MoE publication typeD4 Published development or research report or study

    Publication series

    SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports


    • nondestructive tests
    • thermal power plants
    • electric power plants


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