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Analysis of Microstructure and Damage Evolution in Ultra-Thin Wires of the Magnesium Alloy MgCa0.8 at Multipass Drawing

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Abstract

A combined multipass hot and cold drawing process was implemented to manufacture ultra-thin wires of the magnesium alloy MgCa0.8 with a final diameter of 0.05 mm. Numerical simulations were applied to design the drawing process of 40 passes regarding the microstructure evolution. To parametrize the model, in situ tensile tests were performed. Analysis of the MgCa0.8 wires featuring diameters below 0.1 mm revealed no intergranular crack initiation. The grain size of the ultra-thin wires is within the range of 30–500 nm with grains elongated in the drawing direction. The fine-grained microstructure provides high mechanical strength properties.

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Acknowledgements

The work was performed within the Project AGH No. 11.11.110.291 under the support of the Ministry of Science and High Education of Poland.

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Authors and Affiliations

  1. AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Kraków, Poland

    Andrij Milenin, Piotr Kustra & Dorota Byrska-Wójcik

  2. Chair of Materials Science, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany

    Olexandr Grydin & Mirko Schaper

  3. Institut für Werkstoffkunde (Materials Science), Leibniz Universität Hannover, An der Universität 2, 30823, Garbsen, Germany

    Thorben Mentlein, Gregory Gerstein & Florian Nürnberger

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  1. Andrij Milenin
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  2. Piotr Kustra
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  3. Dorota Byrska-Wójcik
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  4. Olexandr Grydin
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  5. Mirko Schaper
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  6. Thorben Mentlein
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  8. Florian Nürnberger
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Correspondence to Olexandr Grydin.

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Milenin, A., Kustra, P., Byrska-Wójcik, D. et al. Analysis of Microstructure and Damage Evolution in Ultra-Thin Wires of the Magnesium Alloy MgCa0.8 at Multipass Drawing. JOM 68, 3063–3069 (2016). https://doi.org/10.1007/s11837-016-2127-3

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  • DOI: https://doi.org/10.1007/s11837-016-2127-3

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