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Author:

Wen, Kai (Wen, Kai.) | Du, Wen-Bo (Du, Wen-Bo.) (Scholars:杜文博) | Liu, Ke (Liu, Ke.) (Scholars:刘克) | Wang, Zhao-Hui (Wang, Zhao-Hui.) | Li, Shu-Bo (Li, Shu-Bo.)

Indexed by:

EI Scopus SCIE CSCD

Abstract:

The microstructures of as-cast and as-solution Mg-12Gd-2Er-1Zn-0.6Zr alloys were investigated by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and selected-area electron diffraction (SAED) in the present investigation. The results show that the primary eutectic phase Mg-5(Gd, Er, Zn) and some flocculent features are found in the as-cast alloy; the SAED pattern indicates that these flocculent features are the dense areas of stacking faults. The 14H-LPSO structure precipitates in the temperature range of 673-793 K, and the volume fraction of 14H-LPSO structure increases with the extension of heating time; however, there is no precipitation of 14H-LPSO structure when the temperature reaches up to 803 K. In addition, the Mg-5(Gd, Er, Zn) phase dissolves gradually along with the precipitation of 14H-LPSO structure.

Keyword:

Heat treatment Microstructure Mg-Gd-Er-Zn-Zr alloy Dense stacking faults area

Author Community:

  • [ 1 ] [Wen, Kai]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Du, Wen-Bo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Ke]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Wang, Zhao-Hui]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Shu-Bo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 杜文博

    [Du, Wen-Bo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

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Source :

RARE METALS

ISSN: 1001-0521

Year: 2016

Issue: 5

Volume: 35

Page: 367-373

8 . 8 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:305

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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