• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1990, Vol. 26 ›› Issue (4): 16-19.

• 论文 • 上一篇    下一篇

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2024高强铝合金中等弥散相Al20Cu2Mn3结构的确定

王顺才;李春志;边为民   

  1. 北京航空材料研究所;东北工学院
  • 发布日期:1990-07-01

THE MICROSTRUCTURE DETERMINATION OF THE DISPERSOID PHASES IN 2024 ALUMINIUM ALLOYS

Wang Shuncai;Li Chunzhi;Bian Weimin   

  1. Institute of Aeronalical Materials,Beijing Northeast University of Technology
  • Published:1990-07-01

摘要： 本文利用会聚束电子衍射、x射线能谱分析以及常规电子衍射对2024高强铝合金均匀化过程中的析出相—棒状T相的结构进行了测定，确定出T相的空间群为Bbmm，点阵参数a＝2.41nm，b＝1.25nm，c＝0.78nm，用轴向始终沿自身[010]方向。

关键词: 会聚束衍射, 铝合金, 弥散金, 微观结构

Abstract: The structures of Al20Cu2Mn8 (T phase) which precipated out during homogeneous sequence in 2024 high strength Al alloys have been studied using covergent been electron diffraction (CBD) , selected area electron diffraction (SAD) and x-ray energy dispersive spectrometer (EDS). The space group of T phase has been determined to be Bbmm ,and the lattice parameters of T phase have a=2.41nm, b=1.25nm, c=0.78nm. T phase takes the shape of rod which axis along[010] direction of itself.

Key words: 会聚束衍射, 铝合金, 弥散金, 微观结构

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