Influence of compressive pre-strain on tensile fatigue life in carbon steel S45C

Hirokazu Tamaki, Rumi Kitazawa, Makoto Yoshida, Susumu Horibe

    Research output: Contribution to journalArticle

    Abstract

    For S45C carbon steel with three heat treatments, pulsating tension tests were carried out under controlled stress condition. The effect of compressive pre-strain, Bauschinger effect and controlling factors on fatigue life were examined. The following results were obtained. The decrease of pulsating fatigue life was caused by three factors, i.e. increase of the total plastic strain amplitude, cyclic plastic strain amplitude and cyclic creep rate. The increase of Bauschinger strain led to the increase of the value of the three factors. Then it resulted in shorter fatigue life. In order to examine the cyclic stress conditions to the fatigue life, the stress ratio was defined as the ratio of maximum cyclic stress to yield stress of each material. Bauschinger strain was occurred when the stress ratio was under the threshold for each material. As the result, cyclic plastic strain amplitude and cyclic creep rate were increased and then pulsating fatigue life was reduced.

    Original languageEnglish
    Pages (from-to)503-508
    Number of pages6
    JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
    Volume77
    Issue number11
    DOIs
    Publication statusPublished - 2013 Nov

    Fingerprint

    fatigue life
    carbon steels
    Carbon steel
    Fatigue of materials
    stress ratio
    Plastic deformation
    plastics
    Creep
    Bauschinger effect
    Yield stress
    heat treatment
    Heat treatment
    thresholds

    Keywords

    • Bauschinger effect
    • Carbon steel
    • Cyclic creep
    • Fatigue life
    • Plastic strain
    • Pre-strain

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Materials Chemistry
    • Metals and Alloys
    • Condensed Matter Physics

    Cite this

    Influence of compressive pre-strain on tensile fatigue life in carbon steel S45C. / Tamaki, Hirokazu; Kitazawa, Rumi; Yoshida, Makoto; Horibe, Susumu.

    In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 77, No. 11, 11.2013, p. 503-508.

    Research output: Contribution to journalArticle

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