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Deformation Behavior and Constitutive Equation Coupled the Grain Size of Semi-Solid Aluminum Alloy

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Abstract

Isothermal compression tests on Al-4Cu-Mg alloy were carried out in semi-solid state. Deformation behavior and microstructural evolution are discussed in this paper. Meanwhile, a new constitutive equation, which couples the grain size and liquid volume fraction, has been established for the semi-solid deformation behavior. The results show that the maximum difference between the calculated with the experimental data is less than 15%. The present equation is satisfactory for describing the correlation between the flow stress and microstructure of semi-solid Al-4Cu-Mg alloy. The coupled simulation of the deformation behavior and microstructural evolution during the semi-solid forming would be conducted easily through writing the present equation in a FE code.

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Acknowledgment

This research has been supported by the Foundational Research Plan of Jiangsu Province (No. BK2005025).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, China

    Yalin Lu & Miaoquan Li

  2. School of Mechanical Engineering, Jiangsu Teachers University of Technology, Changzhou, China

    Yalin Lu & Xingcheng Li

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  1. Yalin Lu
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  2. Miaoquan Li
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  3. Xingcheng Li
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Correspondence to Miaoquan Li.

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Lu, Y., Li, M. & Li, X. Deformation Behavior and Constitutive Equation Coupled the Grain Size of Semi-Solid Aluminum Alloy. J. of Materi Eng and Perform 19, 1337–1343 (2010). https://doi.org/10.1007/s11665-010-9627-z

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  • DOI: https://doi.org/10.1007/s11665-010-9627-z

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