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Experimental investigation of the isothermal section of the Mg–Ni–Y system with LPSO phases at 400 °C

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Abstract

Phase equilibria of the Mg–Ni–Y system were experimentally investigated through X-ray diffraction, electron probe microanalysis and transmission electron microscope measurements on thirty alloys. The isothermal section of the Mg–Ni–Y system at 400 °C was constructed according to the present experimental results. At 400 °C, thirteen ternary intermetallics including three long-period stacking ordered phases: τ1 (14H), τ2 (18R) and τ3 (10H), were observed. Their homogeneity ranges as well as the phase relationship were determined experimentally. The ternary phase of τ9 (Mg3Ni3Y4) was observed for the first time in the present work.

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Acknowledgements

The financial supports from the National Key Research and Development Plan (No. 2016YFB0701202) and the State Key Laboratory Foundation of Central South University of China are greatly acknowledged.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China

    Kai Xu

  2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China

    Kai Xu, Shuhong Liu & Yong Du

  3. Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, China

    Dandan Huang

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  1. Kai Xu
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  2. Shuhong Liu
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  4. Yong Du
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Correspondence to Shuhong Liu.

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We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.

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Xu, K., Liu, S., Huang, D. et al. Experimental investigation of the isothermal section of the Mg–Ni–Y system with LPSO phases at 400 °C. J Mater Sci 53, 9243–9257 (2018). https://doi.org/10.1007/s10853-018-2192-9

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  • DOI: https://doi.org/10.1007/s10853-018-2192-9

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