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作者:

Liu, Ke (Liu, Ke.) (学者:刘克) | Du, Wenbo (Du, Wenbo.) (学者:杜文博) | Li, Shubo (Li, Shubo.) | Wang, Zhaohui (Wang, Zhaohui.)

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Scopus SCIE

摘要:

The microstructure evolution of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy during annealing treatment has been investigated by using X-ray diffraction (XRD), optical microscope (OM), differential scanning calorimetry (DSC) and transmission electron microscope (TEM). The results indicated that two kinds of primary grains were contained in the melt-spun alloy. One was the supersaturated magnesium matrix, and the other was the 18R-LPSO phase. The 18R-LPSO phase transformed into the 14H-LPSO phase during annealing treatment at 300 degrees C for 0.5 h. The new precipitate of the 14H-LPSO phase was found at 300 degrees C for 5 h. Lots of linear precipitates formed as well as some precipitate with quadrangular morphology in matrix at 500 degrees C for 0.5 h. The melt-spun alloy displayed the highest hardness of 103 NHV after annealing treatment at 300 degrees C for 5 h. (C) 2016 Production and hosting by Elsevier B.V. on behalf of Chongqing University.

关键词:

Melt-spun LPSO phase Mg-RE alloy Microstructure

作者机构:

  • [ 1 ] [Liu, Ke]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Du, Wenbo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Li, Shubo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Wang, Zhaohui]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 杜文博

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

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来源 :

JOURNAL OF MAGNESIUM AND ALLOYS

ISSN: 2213-9567

年份: 2016

期: 2

卷: 4

页码: 99-103

1 7 . 6 0 0

JCR@2022

被引次数:

WoS核心集被引频次: 16

SCOPUS被引频次: 13

ESI高被引论文在榜: 0 展开所有

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