In the cutting process of nickel-based superalloys, because of the high strain rate and cutting temperature, the cutting deformation is complex and there exist hardening and softening phenomena. Therefore, the present study developed a physically-based constitutive model, which represents the mechanical response of a material at a given microstructure in terms of dislocation glide to describe the deformation behaviors of Inconel718. The established model also describes evolution equations for internal variables characterizing the microstructure. The internal variables are related to the dislocation density. Comparisons between the experimental results and those predicted employing different models [a physically-based constitutive model has been established in the present work and Johnson–Cook (JC) constitutive model] indicate that the established model can accurately characterize the deformation behaviors for Inconel718 at high strain rates and temperatures.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Physically Based Constitutive Model for Viscoplastic Deformation of Inconel718 at High Strain Rates and Temperatures


    Contributors:
    Hao, ZhaoPeng (author) / Zhou, XiaoQin (author) / Fan, YiHang (author) / Lin, JieQiong (author)

    Published in:

    Publication date :

    2020-05-31




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Experimental Evaluation of A Viscoplastic Constitutive Model

    Li, K. / American Institute of Aeronautics and Astronautics| ASME| ASCE | British Library Conference Proceedings | 1995



    Enhanced Constitutive Model for Aeronautic Aluminium Alloy (AA2024-T351) under High Strain Rates and Elevated Temperatures

    Paresi, Prudvi Reddy / Lou, Yanshan / Narayanan, Arunachalam et al. | Springer Verlag | 2019


    A Nonlinear Viscoelastic-Viscoplastic Constitutive Model for Epoxy Polymers

    Zhang, Liang / Klimm, Wolfgang J. / Kwok, Kawai et al. | TIBKAT | 2022


    A Nonlinear Viscoelastic-Viscoplastic Constitutive Model for Epoxy Polymers

    Zhang, Liang / Klimm, Wolfgang J. / Kwok, Kawai et al. | TIBKAT | 2022