The master curve and the constitutive equation for creep deformation and fracture for Cr-Mo-V steel throughout smooth, notched and precracked specimens

A. T. Yokobori, T. Yokobori, M. Tabuchi

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    It has been shown experimentally that the master curve for creep deformation versus the ratio of time to fracture time, can be obtained for smooth, notched and precracked specimens of Cr-Mo-V steel, a high-temperature ductile material. A simple unified constitutive equation, i.e. a master curve equation, has been proposed. It is suggested that there is some correlation between the creep deformation fracture curve and the creep damage size master curve. Although the range of the applicability of methodology might be rather limited, the development of this concept is needed for improved long-term creep lives and for other creep ductile materials.

    Original languageEnglish
    Pages (from-to)4767-4773
    Number of pages7
    JournalJournal of Materials Science
    Volume31
    Issue number18
    DOIs
    Publication statusPublished - 1996 Jan 1

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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