Dynamic recrystallization during hot torsion of Al-4Mg alloy

Junpin Lin, Yanli Wang, Zhi Lin, Guoliang Chen

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    Cite this article as:

    Junpin Lin, Yanli Wang, Zhi Lin, and Guoliang Chen, Dynamic recrystallization during hot torsion of Al-4Mg alloy, J. Univ. Sci. Technol. Beijing , 10(2003), No. 2, pp.45-48.
    Junpin Lin, Yanli Wang, Zhi Lin, and Guoliang Chen, Dynamic recrystallization during hot torsion of Al-4Mg alloy, J. Univ. Sci. Technol. Beijing , 10(2003), No. 2, pp.45-48.
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    Materials

    Dynamic recrystallization during hot torsion of Al-4Mg alloy

    基金项目: 

    The project was sponsored by the Education Administration Major Project for Science Research under the contract No. 99134.

      通信作者:

      Junpin Lin E-mail: jplin@public.fhnet.cn.net

    Binary Al-4Mg alloy have been deformed by hot torsion at 300-500℃ and strain rates of 0,006-1.587 s-1 to a true strain of 5.5. The specimens were annealed in vacuum for 1.5 h at 500℃ and then water quenched. The study indicates that the dynamic recrystallization occurs during hot torsion of Al-4Mg alloy in a certain range of Z parameter (Zener-Hollmon Parameter), i.e. 19.3 ≤ lnZ ≤ 24.8. Increasing the strain rate at higher deformation temperature or reducing the strain rate at lower deformation temperature accelerates the occurrence of dynamic recrystallization in the alloy.

     

    Materials

    Dynamic recrystallization during hot torsion of Al-4Mg alloy

    Author Affilications
    • Funds: 

      The project was sponsored by the Education Administration Major Project for Science Research under the contract No. 99134.

    • Received: 09 June 2002;
    Binary Al-4Mg alloy have been deformed by hot torsion at 300-500℃ and strain rates of 0,006-1.587 s-1 to a true strain of 5.5. The specimens were annealed in vacuum for 1.5 h at 500℃ and then water quenched. The study indicates that the dynamic recrystallization occurs during hot torsion of Al-4Mg alloy in a certain range of Z parameter (Zener-Hollmon Parameter), i.e. 19.3 ≤ lnZ ≤ 24.8. Increasing the strain rate at higher deformation temperature or reducing the strain rate at lower deformation temperature accelerates the occurrence of dynamic recrystallization in the alloy.

     

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