Law of fracture life for directionally solidified and poly-crystal nickel-base super alloys (CM247LC and IN100) under creep-fatigue conditions based on non-equilibrium science

A. T. Yokobori, R. Sugiura, H. Takeuchi, G. Ozeki, A. Ishida, D. Kobayashi, S. Hosono

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    Nickel-base super-alloys strengthening by precipitation of γ' phase are used as a heat resistant material in gas turbines for electric power plant and jet engine. They were severely subjected to creep (time dependent mechanism, TD) and strain/stress controlled fatigue conditions (cyclic dependent condition, CD). In this paper, sophisticated investigation and analyses on the load frequency characteristics of fracture life under creep and fatigue conditions were conducted based on catastrophic function for nickel-based super alloys, CM247LC (directionally solidified nickel-base material, DS) and these results were compared with those of IN100 (polycrystalline nickel-base material).

    Original languageEnglish
    Pages (from-to)25-44
    Number of pages20
    JournalStrength, Fracture and Complexity
    Volume8
    Issue number1
    DOIs
    Publication statusPublished - 2013 Sep 16

    Keywords

    • CM247LC
    • IN100
    • Nickel-base superalloy
    • Q
    • concept
    • creep-fatigue interaction
    • fracture life
    • non-equilibrium science

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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