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  • Strain accumulation in Ti-6A1-4V during fatigue at high mean stress
    Morrisey, R. J. ; McDowell, D. L. ; Nicholas, T.
    ǂThe ǂeffect of mean stress and frequency on the high cycle fatigue behavior of Ti-6Al-4V has been investigated. It has been shown that a transition in the fatigue behavior occurs at a stress ratio ... of approximately 0.7. Above this value, the material exhibits measurable strain accumulation and necking. Since Ti-6Al-4V is susceptible to room temperature creep, an empirical model was developed using static creep data in an attempt to predict the cyclic behavior of the material. The model was unable to account for the large amounts of strain seen experimentally. In addition, closer examination of the data revealed that the deformation was more closely related to the number of cycles than to time.
    Source: Mechanics of time-dependent materials : an international journal devoted to the time-dependent behaviour of materials and structures. - ISSN 1385-2000 (Vol. 2, no. 3, 1998/1999, 195-210)
    Type of material - article, component part
    Publish date - 1998
    Language - english
    COBISS.SI-ID - 3871259

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