快速凝固Al—Li─Cu—Mg—Zr合金中H相和Z相的TEM研究

材料研究学报, 1994, 8(3): 227-232.

快速凝固Al—Li─Cu—Mg—Zr合金中H相和Z相的TEM研究

张立春 , 何安强 , 叶恒强 , 张永昌

中国科学院金属研究所固体原子像实验室

中国科学院金属研究所微晶室

关键词： Al─Li─Cu─Mg─Zr合金.四方H相 , tetragonal H phase , hexagonal Z phase

TEM STUDY OF H AND Z PHASES IN RAPIDLY SOLIDIFIED Al-Li-Cu-Mg-Zr ALLOY

ZHANG Lichun , HE Anqiang , YE Hengqiang(Laboratory of Atomic Imaging of Solids , Institute of Metal Research

Keywords： :Al-Li-Cu-Mg-Zr alloy , 六角Z相 , 旋转畴

用HRTEM、TEM及EDAX分析研究了Al─Li—Cu—Mg—Zr合金中的一种新相(暂名H相)和六角Z相的结构,确定H相具有四方点阵,点阵参数为α=2.8nm,c=2.4nm,EDAX分析表明H相和Z相均含Al、Mg、Cu发现H相与Z相的共存取向关系为[100]‖[1120]Z,[1010]H‖[0001]Z。还观察到Z相中一种特有的旋转畴结构

Aluminum-Lithium alloys is of considerate interest to the aerospace community due to their high strengths and stiffness. Basic research in the Al-Li based systems was stimulated once more since the icosadral quasicrystal T2-A16Cu3Li was observed in the Al

参考文献

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材料期刊网

快速凝固Al—Li─Cu—Mg—Zr合金中H相和Z相的TEM研究

TEM STUDY OF H AND Z PHASES IN RAPIDLY SOLIDIFIED Al-Li-Cu-Mg-Zr ALLOY

参考文献