Journal of Materials Science

, Volume 53, Issue 12, pp 9243–9257 | Cite as

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

  • Kai Xu
  • Shuhong Liu
  • Dandan Huang
  • Yong Du


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.

Compliance with ethical standards

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.


  1. 1.
    Yoshihito K, Kentaro H, Akihisa I, Tsuyoshi M (2001) Rapidly solidified powder metallurgy Mg97Zn1Y2 alloys with excellent tensile yield strength above 600 Mpa. Mater Trans 42:1172–1176CrossRefGoogle Scholar
  2. 2.
    Hui X, Dong W, Chen GL, Yao KF (2007) Formation, microstructure and properties of long-period order structure reinforced Mg-based bulk metallic glass composites. Acta Mater 55:907–920CrossRefGoogle Scholar
  3. 3.
    Zhang QA, Liu DD, Wang QQ, Fang F, Sun DL, Ouyang LZ, Zhu M (2011) Superior hydrogen storage kinetics of Mg12YNi alloy with a long-period stacking ordered phase. Scr Mater 65:233–236CrossRefGoogle Scholar
  4. 4.
    Itoi T, Takahashi K, Moriyama H, Hirohashi M (2008) A high-strength Mg–Ni–Y alloy sheet with a long-period ordered phase prepared by hot-rolling. Scr Mater 59:1155–1158CrossRefGoogle Scholar
  5. 5.
    Itoi T, Ichikawa R, Hirohashi M (2012) Deformation behavior of Mg–Ni–Y alloy with long period stacking ordered phase. Mater Sci Forum 706–709:1176–1180CrossRefGoogle Scholar
  6. 6.
    Qin DZ, Wang JF, Chen YL, Lu RP, Pan FS (2015) Effect of long period stacking ordered structure on the damping capacities of Mg–Ni–Y alloys. Mater Sci Eng, A 624:9–13CrossRefGoogle Scholar
  7. 7.
    Liu JW, Zou CC, Wang H, Ouyang LZ, Zhu M (2013) Facilitating de/hydrogenation by long-period stacking ordered structure in Mg based alloys. Int J Hydrogen Energy 38:10438–10445CrossRefGoogle Scholar
  8. 8.
    Jiang M, Zhang S, Bi YD, Li HX, Ren YP, Qin GW (2015) Phase equilibria of the long-period stacking ordered phase in the Mg–Ni–Y system. Intermetallics 57:127–132CrossRefGoogle Scholar
  9. 9.
    Zhu SM, Lapovok R, Nie JF, Estrin Y, Mathaudhu SN (2017) Microstructure and mechanical properties of LPSO phase dominant Mg85.8Y7.1Zn7.1 and Mg85.8Y7.1Ni7.1 alloys. Mater Sci Eng, A 692:35–42CrossRefGoogle Scholar
  10. 10.
    Jin QQ, Fang CF, Mi SB (2013) Formation of long-period stacking ordered structures in Mg88M5Y7 (M = Ti, Ni and Pb) casting alloys. J Alloys Compd 568:21–25CrossRefGoogle Scholar
  11. 11.
    Wang ZL, Luo Q, Chen SL, Chou KC, Li Q (2015) Experimental investigation and thermodynamic calculation of the Mg–Ni–Y system (Y < 50 at.%) at 400 and 500 & #xB0;C. J Alloys Compd 649:1306–1314CrossRefGoogle Scholar
  12. 12.
    Yao QR, Zhou HY, Wang ZM (2006) The isothermal section of the phase diagram of the ternary system Y–Mg–Ni at 673 K in the region 50-100 at.% Ni. J Alloys Compd 421:117–119CrossRefGoogle Scholar
  13. 13.
    Kadir K, Sakai T, Uehara I (1999) Structural investigation and hydrogen capacity of YMg2Ni9 and (Y0.5Ca0.5)(MgCa)Ni9: New phases in the AB2C9 system isostructural with LaMg2Ni9. J Alloys Compd 287:264–270CrossRefGoogle Scholar
  14. 14.
    Aono K, Orimo S, Fujii H (2000) Structural and hydriding properties of MgYNi4: a new intermetallic compound with C15b-type Laves phase structure. J Alloys Compd 309:L1–L4CrossRefGoogle Scholar
  15. 15.
    Mezbahul-Islam M, Kevorkov D, Essadiqi E, Medraj M (2012) Ternary intermetallic compounds across the Mg–NiY line at 673 K. Mater Sci Forum 706–709:1134–1139CrossRefGoogle Scholar
  16. 16.
    Mezbahul-Islam M, Kevorkov D, Medraj M (2015) Experimental study of the Mg–Ni–Y system at 673 K using diffusion couples and key alloys. Metals 5:1746–1769CrossRefGoogle Scholar
  17. 17.
    Mezbahul-Islam M, Medraj M (2009) A critical thermodynamic assessment of the Mg–Ni, Ni–Y binary and Mg–Ni–Y ternary systems. Calphad 33:478–486CrossRefGoogle Scholar
  18. 18.
    Egusa D, Abe E (2012) The structure of long period stacking/order Mg–Zn–RE phases with extended non-stoichiometry ranges. Acta Mater 60:166–178CrossRefGoogle Scholar
  19. 19.
    Saal JE, Wolverton C (2014) Thermodynamic stability of Mg-based ternary long-period stacking ordered structures. Acta Mater 68:325–338CrossRefGoogle Scholar
  20. 20.
    Kishida K, Nagai K, Matsumoto A, Yasuhara A, Inui H (2015) Crystal structures of highly-ordered long-period stacking-ordered phases with 18R, 14H and 10H-type stacking sequences in the Mg–Zn–Y system. Acta Mater 99:228–239CrossRefGoogle Scholar
  21. 21.
    Okuda H, Horiuchi T, Tsukamoto T, Ochiai S, Yamasaki M, Kawamura Y (2013) Evolution of long-period stacking order structures on annealing as-cast Mg85Y9Zn6 alloy ingot observed by synchrotron radiation small-angle scattering. Scr Mater 68:575–578CrossRefGoogle Scholar
  22. 22.
    Yamasaki M, Matsushita M, Hagihara K, Izuno H, Abe E, Kawamura Y (2014) Highly ordered 10H-type long-period stacking order phase in a Mg–Zn–Y ternary alloy. Scr Mater 78–79:13–16CrossRefGoogle Scholar
  23. 23.
    Li Y, Gu QF, Li Q, Zhang TF (2017) In-situ synchrotron X-ray diffraction investigation on hydrogen-induced decomposition of long period stacking ordered structure in Mg–Ni–Y system. Scr Mater 127:102–107CrossRefGoogle Scholar
  24. 24.
    Zaremba R, Rodewald UC, Hoffman RD, Pöttgen R (2007) The rare earth metal-rich indides RE4RhIn (RE = Gd–Tm, Lu). Monatsh Chem 138:523–528CrossRefGoogle Scholar
  25. 25.
    Couillaud S, Linsinger S, Duée C, Rougier A, Chevalier B, Pöttgen R, Bobet JL (2010) Hydrogenation behavior of the solid solutions RE4NiMg1-xAlx and RE4-yNiMg1+y with RE = Gd and Y. Intermetallics 18:1115–1121CrossRefGoogle Scholar
  26. 26.
    Fabrichnaya OB, Lukas HL, Effenberg G, Aldinger F (2003) Thermodynamic optimization in the Mg–Y system. Intermetallics 11:1183–1188CrossRefGoogle Scholar
  27. 27.
    Guo CP, Du ZM, Li CR (2007) A thermodynamic description of the Gd–Mg–Y system. Calphad 31:75–88CrossRefGoogle Scholar
  28. 28.
    Hoffmann RD, Fugmann A, Rodewald UC, Pottgen R (2000) New intermetallic compounds Ln2Ni2Mg (Ln = Y, La–Nd, Sm, Gd–Tm) with Mo2FeB2 structure. Z Anorg Allg Chem 626:1733–1738CrossRefGoogle Scholar
  29. 29.
    Song WJ, Li JS, Zhang TB, Hou XJ, Kou HC (2015) Formation mechanism of tetrahedral MgYNi4 phase. Mater Lett 145:193–196CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringCentral South UniversityChangshaChina
  2. 2.State Key Laboratory of Powder MetallurgyCentral South UniversityChangshaChina
  3. 3.Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured MaterialsGuangxi UniversityNanningChina

Personalised recommendations