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Physical fields evolution and microstructures for compound extrusion of AZ31 magnesium alloy

  • Pressure Treatment of Metals
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

To research physical fields evolution and microstructures for compound extrusion of AZ31 Alloy, A kind of compound extrusion technology including extrusion and following shears for AZ31 magnesium billets have been explored. Three-dimensional finite element simulations of extruding AZ31 magnesium alloy billets into small rods at certain ram speed have been performed by compound extrusion with extrusion ratio 28 and channel angle 150°. Parameters including workpiece material characteristics and process conditions have been taken into consideration. High cumulative strains and low temperatures rise was the main reason for grain refinement during compound process. The observation results of microstructures and rod surface quality showed that the compound process effectively refine the grains of AZ31 magnesium and product magnesium alloy rods.

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Authors and Affiliations

  1. College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400050, China

    H. -J. Hu, J. -Z. Fan, Z. -Y. Zhai, H. Wang & Y. -Y. Li

  2. Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL, 35487, USA

    X. -B. Gong

Authors
  1. H. -J. Hu
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  2. J. -Z. Fan
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  3. Z. -Y. Zhai
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  4. H. Wang
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  5. Y. -Y. Li
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  6. X. -B. Gong
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Hu, H.J., Fan, J.Z., Zhai, Z.Y. et al. Physical fields evolution and microstructures for compound extrusion of AZ31 magnesium alloy. Russ. J. Non-ferrous Metals 55, 254–262 (2014). https://doi.org/10.3103/S1067821214030067

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  • DOI: https://doi.org/10.3103/S1067821214030067

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