• Grain refinement of AZ31 magnesium alloy by electromagnetic stirring under effect of grain-refiner

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      https://www.ias.ac.in/article/fulltext/boms/035/04/0651-0655

    • Keywords

       

      Low-frequency electromagnetic field; AZ31 magnesium alloy; Al4C3; grain refinement.

    • Abstract

       

      The effects of electromagnetic stirring and Al4C3 grain refiner on the grain refinement of semicontinuously cast AZ31 magnesium alloy were discussed in this investigation. The results indicate that electromagnetic stirring has an effective refining effect on the grain size of AZ31 magnesium alloy under the effect of Al4C3 grain refiner. Electromagnetic stirring can `activate’ the Al4C3 particles, resulting in more heterogeneous nucleation sites for the primary 𝛼-Mg grains. But, longer holding time can `deactivate’ the Al4C3 particles and poison the grain refining effect.

    • Author Affiliations

       

      S Y Gao1 Q C Le1 Z Q Zhang1 J Z Cui1

      1. Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
    • Dates

       

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