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Consolidation of Pure Magnesium Powder by Equal-Channel Angular Pressing with Back Pressure

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Abstract

Pure Mg particles were consolidated by equal-channel angular pressing (ECAP) with back pressure at 423 K. Fully dense bulk Mg with a homogeneous grain structure was obtained. After multiple passes, grains were significantly refined to below 2 µm, resulting in much enhanced yield strength and enhanced ductility. The intense \(\left(10\stackrel{-}{1}1\right)\langle \stackrel{-}{1}2\stackrel{-}{1}0\rangle \) texture was developed during ECAP, leading to texture softening. The oxide layer on the surface of Mg particles was broken into nano-sized pieces distributed in the matrix, hindering the movement of dislocations and providing dispersion strengthening.

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Authors and Affiliations

  1. School of Materials, Northeastern University, Shenyang, 110819, Liaoning, China

    Zhuoliang Li

  2. Department of Mechanical Engineering, University of Melbourne, Melbourne, VIC, 3010, Australia

    Kenong Xia

  3. State Key Lab of Rolling and Automatic, Northeastern University, Shenyang, 110819, China

    Hua Ding

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  1. Zhuoliang Li
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Li, Z., Xia, K. & Ding, H. Consolidation of Pure Magnesium Powder by Equal-Channel Angular Pressing with Back Pressure. J. of Materi Eng and Perform 30, 2213–2219 (2021). https://doi.org/10.1007/s11665-021-05479-9

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