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A high-strength extruded Mg-Gd-Zn-Zr alloy with superplasticity

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Abstract

This article presents an extruded Mg–Gd–Zn–Zr alloy produced by conventional ingot metallurgy, exhibiting high-strength and excellent ductility at room and elevated temperatures. The superplastic behavior was observed in the Mg–Gd–Zn (–Zr) alloy at elevated temperatures above 573 K. In the alloy, both the X phase in grain boundaries and the lamellae within matrix have the 14H-type long-period, stacking-ordered structure. It indicates that the X phase and the lamellae within matrix play important roles in the excellent mechanical properties.

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Authors and Affiliations

  1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China

    Y. J. Wu, L. M. Peng & X. Q. Zeng

  2. The State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China

    D. L. Lin & W. J. Ding

Authors
  1. Y. J. Wu
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  2. L. M. Peng
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  3. X. Q. Zeng
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  4. D. L. Lin
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  5. W. J. Ding
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Correspondence to L. M. Peng.

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Wu, Y.J., Peng, L.M., Zeng, X.Q. et al. A high-strength extruded Mg-Gd-Zn-Zr alloy with superplasticity. Journal of Materials Research 24, 3596–3602 (2009). https://doi.org/10.1557/jmr.2009.0425

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  • DOI: https://doi.org/10.1557/jmr.2009.0425

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