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Effects of minor Zr and Sr on as-cast microstructure and mechanical properties of Mg–3Ce–1.2Mn–1Zn (wt%) magnesium alloy

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The effects of minor Zr and Sr on the as-cast microstructure and mechanical properties of the Mg–3Ce–1.2Mn–1Zn (wt%) alloy were investigated. The results indicate that adding minor Zr and/or Sr to the Mg–3Ce–1.2Mn–1Zn alloy does not cause an obvious change in the morphology and distribution of the Mg12Ce phase. However, the grains of the Zr- and/or Sr-containing alloys are effectively refined. Among the Zr- and/or Sr-containing alloys, the grains of the alloy with the addition of 0.5 wt%Zr + 0.1 wt%Sr are the finest. Furthermore, adding minor Zr and/or Sr to the Mg–3Ce–1.2Mn–1Zn alloy can improve the tensile properties. Among the Zr- and/or Sr-containing alloys, the alloy with the addition of 0.5 wt%Zr + 0.1 wt%Sr obtains the optimum tensile properties. In addition, adding minor Zr and/or Sr to the Mg–3Ce–1.2Mn–1Zn alloy also can improve the creep properties, and the creep properties of the three alloys with the additions of 0.5 wt%Zr + 0.1 wt%Sr, 0.5 wt%Zr, and 0.1 wt%Sr are similar.

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Acknowledgements

This study was supported by the National Natural Science Funds of China (No. 50725413), the Major State Basic Research Development Program of China (973)(No. 2007CB613704), the Chongqing Science and Technology Commission in China (CSTC, 2010AC4085 and 2009AB4134), and the Program for Hundreds of Distinguished Leading Scientists of CQ CSTC (2010CSTC-HDLS).

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Authors and Affiliations

  1. Materials Science & Engineering College, Chongqing University of Technology, Chongqing, 400054, China

    Mingbo Yang, Xiaofeng Liang, Jia Shen & Caiyuan Qin

  2. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400030, China

    Mingbo Yang & Fusheng Pan

  3. Key Laboratory of Automobile Components Manufacturing and Testing Technology of the Education Ministry, Chongqing University of Technology, Chongqing, 400054, China

    Mingbo Yang

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  1. Mingbo Yang
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  2. Fusheng Pan
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  3. Xiaofeng Liang
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  4. Jia Shen
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  5. Caiyuan Qin
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Correspondence to Mingbo Yang.

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Yang, M., Pan, F., Liang, X. et al. Effects of minor Zr and Sr on as-cast microstructure and mechanical properties of Mg–3Ce–1.2Mn–1Zn (wt%) magnesium alloy. J Mater Sci 46, 3216–3224 (2011). https://doi.org/10.1007/s10853-010-5206-9

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  • DOI: https://doi.org/10.1007/s10853-010-5206-9

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