Formation of a lamellar 14H-type long period stacking ordered structure in an as-cast Mg-Gd-Zn-Zr alloy

被引：95
|
作者：
Wu, Y. J. [1 ,3 ]
Lin, D. L. [1 ,2 ]
Zeng, X. Q. [1 ,3 ]
Peng, L. M. [1 ,3 ]
Ding, W. J. [1 ,3 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 06期
关键词：
MECHANICAL-PROPERTIES; MAGNESIUM ALLOY; ELECTRON-MICROSCOPY; STRENGTH; MICROSTRUCTURE; PHASE; TEMPERATURE; ADDITIONS;
D O I：
10.1007/s10853-008-3213-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel as-cast Mg96.82Gd2Zn1Zr0.18 alloy was produced by conventional ingot metallurgy. By scanning electron microscope and transmission electron microscope observations, its as-cast microstructure is mainly composed of the alpha'-Mg solid solution, the coherent fine-lamellae and the eutectic. The beta-phase ((Mg,Zn)(3)Gd) as the second phase in eutectic has a face-center cubic structure. While, the coherent lamellae consist of the 2H-Mg and the 14H-type long period stacking ordered (LPSO) structure. At present, the lamellar 14H-type LPSO structure has first been observed within alpha'-Mg matrix in the as-cast Mg-Gd-Zn-Zr alloys. It can be concluded that the lamellar 14H-type LPSO structure within alpha'-Mg matrix is a special structure obviously different from alpha-Mg matrix (2H-type structure) in structure, composition, and formation condition.
引用
收藏
页码：1607 / 1612
页数：6
相关论文
共 50 条
  • [1] Formation of a lamellar 14H-type long period stacking ordered structure in an as-cast Mg–Gd–Zn–Zr alloy
    Y. J. Wu
    D. L. Lin
    X. Q. Zeng
    L. M. Peng
    W. J. Ding
    Journal of Materials Science, 2009, 44 : 1607 - 1612
  • [2] Formation of 14H-type long period stacking ordered structure in the as-cast and solid solution treated Mg-Gd-Zn-Zr alloys
    Ding, W. J.
    Wu, Y. J.
    Peng, L. M.
    Zeng, X. Q.
    Yuan, G. Y.
    Lin, D. L.
    JOURNAL OF MATERIALS RESEARCH, 2009, 24 (05) : 1842 - 1854
  • [3] Biocorrosion behavior and cytotoxicity of a Mg-Gd-Zn-Zr alloy with long period stacking ordered structure
    Zhang, Xiaobo
    Wu, Yujuan
    Xue, Yajun
    Wang, Zhangzhong
    Yang, Lei
    MATERIALS LETTERS, 2012, 86 : 42 - 45
  • [4] Study of Mg-Gd-Zn-Zr alloys with long period stacking ordered structures
    Zhang, Jinshan
    Zhang, Wenbo
    Bian, Liping
    Cheng, Weili
    Niu, Xiaofeng
    Xu, Chunxiang
    Wu, Shaojie
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 585 : 268 - 276
  • [5] Formation of profuse long period stacking ordered microcells in Mg-Gd-Zn-Zr alloy during multipass ECAP process
    20141317517428
    Ma, A.B. (aibin-ma@hhu.edu.cn), 1600, Elsevier Ltd (601):
  • [6] Formation of profuse long period stacking ordered microcells in Mg-Gd-Zn-Zr alloy during multipass ECAP process
    Lu, F. M.
    Ma, A. B.
    Jiang, J. H.
    Yang, D. H.
    Yuan, Y. C.
    Zhang, L. Y.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 601 : 140 - 145
  • [7] Effect of long period stacking ordered structure on mechanical and damping properties of as-cast Mg-Zn-Y-Zr alloy
    Tang, Yanxia
    Li, Bo
    Tang, Hongxia
    Xu, Yongchun
    Gao, Yaping
    Wang, Lihua
    Guan, Jinyu
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 640 : 287 - 294
  • [8] Modification of long period stacking ordered phase and improvement of mechanical properties of Mg-Gd-Zn-Zr alloy by friction stir processing
    Li, X. W.
    Zheng, F. Y.
    Wu, Y. J.
    Peng, L. M.
    Zhang, Y.
    Lin, D. L.
    Ding, W. J.
    MATERIALS LETTERS, 2013, 113 : 206 - 209
  • [9] Thermal compression, processing maps and microstructural evolution of as-cast Mg-Gd-Y-Zn-Zr alloy with long period stacking ordered phase
    Xue, Zhiyong
    Luo, Wenbo
    Zhao, Zhi
    Ren, Yu
    MATERIALS RESEARCH EXPRESS, 2020, 7 (05)
  • [10] Microstructure of long period stacking ordered phase in an as-cast Mg-Ni-Zn-Dy alloy
    Zhuang, Yuanlin
    Ye, Li
    Gao, Shengbo
    Liu, Xiaoqing
    Zhao, Dongshan
    Jia, Shuangfeng
    Gui, Jianian
    Wang, Jianbo
    MICRON, 2019, 122 : 41 - 45
12345