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Microstructure and mechanical properties of high speed indirect-extruded Mg-5Sn-(1,2,4)Zn alloys

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Abstract

The microstructural evolution and mechanical properties of high speed indirect-extruded Mg-5%Sn-(1, 2, 4) Zn (mass fraction, %) alloys were investigated by optical microscopy (OM), X-ray diffraction (XRD), scanning electron microscopy (SEM), differential thermal analysis (DTA) and a static tension tester. All the studied alloys can be extruded successfully at a high speed of 10 m/min. The grain size, area fraction of particles and tensile properties are found to be greatly affected by the extrusion speed and Zn content, resulting in tensile properties showing lower strength and ductility as the extrusion speed increases and Zn content decreases. The dependence of grain size and tensile properties on the second phase particles is also discussed.

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Authors and Affiliations

  1. Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China

    Wei-li Cheng  (程伟丽), Zhong-ping Que  (阙仲萍) & Wei Liang  (梁伟)

  2. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China

    Wei-li Cheng  (程伟丽), Miao Wang  (王淼), Zhong-ping Que  (阙仲萍), Chun-xiang Xu  (许春香), Jin-shan Zhang  (张金山) & Wei Liang  (梁伟)

  3. Korea Institute of Materials Science, Changwon, 641-831, Korea

    Bong-sun You

  4. Ulsan National Institute of Science and Technology, Ulsan, 689-798, Korea

    Sung-soo Park

Authors
  1. Wei-li Cheng  (程伟丽)
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  2. Miao Wang  (王淼)
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  3. Zhong-ping Que  (阙仲萍)
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  4. Chun-xiang Xu  (许春香)
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  5. Jin-shan Zhang  (张金山)
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  6. Wei Liang  (梁伟)
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  7. Bong-sun You
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  8. Sung-soo Park
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Corresponding author

Correspondence to Sung-soo Park.

Additional information

Foundation item: Project(2012R1A1A1012802) supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Education, Science and Technology; Project(2013021013-4) supported by Shanxi Province Science Foundation for Youths, China; Project supported by Advanced Programs of Department of Human Resources and Social Security of Shanxi Province for Returned Scholars; Project(2012L003) supported by Foundation for Young Scholars of Taiyuan University of Technology, China

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Cheng, Wl., Wang, M., Que, Zp. et al. Microstructure and mechanical properties of high speed indirect-extruded Mg-5Sn-(1,2,4)Zn alloys. J. Cent. South Univ. 20, 2643–2649 (2013). https://doi.org/10.1007/s11771-013-1779-1

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  • DOI: https://doi.org/10.1007/s11771-013-1779-1

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