Microstructures of Long-Period Stacking Ordered Phase of Mg-Zn-Y Alloy

Access this Article

Search this Article

Author(s)

Abstract

The microstructures of α-Mg, long-period stacking ordered (LPSO) phases, and kink bands in a Mg–Y–Zn alloy were observed by transmission electron microscopy (TEM). The results showed that extruded Mg<sub>97</sub>Zn<sub>1</sub>Y<sub>2</sub> alloy included different kinds of phases: 2H-Mg, 2H-Mg with many stacking faults, 14H and 18R. Kink bands tended to occur in areas where there were many intermetallic compounds. The element distribution of Zn/Y/Mg in the LPSO phase including kink boundaries was also analyzed by scanning TEM energy dispersive X-ray spectroscopy. The results showed that the concentrations of atomic Zn/Y decreased, while the concentration of atomic Mg increased at kink boundaries. This can be understood in terms of the dislocation structure of kink boundaries where extended <b><i>a</i></b>-dislocations lying on sequential stacking faults in the LPSO phase cause the annihilation of Zn/Y-rich stacking faults between two partial dislocations.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 54(5), 632-635, 2013-05-01

    The Japan Institute of Metals and Materials

References:  17

  • <no title>

    KAWAMURA Y.

    Mater. Trans. 42, 1172-1176, 2001

    Cited by (1)

  • <no title>

    INOUE A.

    J. Mater. Res. 16, 1894-1900, 2001

    Cited by (1)

  • <no title>

    LEONTIS T. E.

    The Rare Earths 455, 1961

    Cited by (1)

  • <no title>

    LUO Z. P.

    J. Alloy. Compd. 230, 109-114, 1995

    Cited by (1)

  • <no title>

    ABE E.

    Acta Mater. 50, 3845-3857, 2002

    Cited by (1)

  • <no title>

    MATSUDA M.

    Mater. Sci. Eng. A 386, 447-452, 2004

    Cited by (1)

  • <no title>

    HAGIHARA K.

    Intermetallics 18, 267-276, 2010

    Cited by (1)

  • <no title>

    MINAMOTO S.

    ISIJ Int. 50, 1914-1919, 2010

    Cited by (1)

  • <no title>

    MASUMOTO R.

    J. Jpn. Inst. Metals 73, 683-690, 2009

    Cited by (1)

  • <no title>

    YOSHIMOTO S.

    Mater. Trans. 47, 959-965, 2006

    Cited by (1)

  • <no title>

    ONORBE E.

    J. Mater. Sci. 47, 1085-1093, 2012

    Cited by (1)

  • <no title>

    XU D. K.

    J. Alloy. Compd. 426, 155-161, 2006

    Cited by (1)

  • <no title>

    HESS J. B.

    Metals Trans. 185, 599-606, 1949

    Cited by (1)

  • <no title>

    HIRAGA K.

    Mater. Trans. 53, 1385-1390, 2012

    Cited by (1)

  • <no title>

    SUZUKI M.

    Scr. Mater. 48, 997-1002, 2003

    Cited by (1)

  • <no title>

    SUZUKI M.

    Mater. Sci. Eng. A 387-389, 707-709, 2004

    Cited by (1)

  • <no title>

    BOEHLERT C. J.

    Mater. Sci. Eng. A 417, 315-321, 2006

    Cited by (1)

Codes

  • NII Article ID (NAID)
    10031168402
  • NII NACSIS-CAT ID (NCID)
    AA1151294X
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    13459678
  • NDL Article ID
    024446868
  • NDL Call No.
    Z53-J286
  • Data Source
    CJP  NDL  J-STAGE 
Page Top