Experimental investigation of the isothermal section of the Mg–Ni–Y system with LPSO phases at 400 °C
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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.
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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Conflict of interest
We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.