HIGH-RESOLUTION ELECTRON-MICROSCOPY STUDY OF DEFECTS IN AN FCC PHASE FORMED BY INGOT CASTING IN AL-LI-CU-MG ALLOYS

被引:0
|
作者
WANG, SC [1 ]
LI, CZ [1 ]
YAN, MG [1 ]
机构
[1] ACAD SINICA,INST MET RES,ATOM IMAGING SOLIDS LAB,SHENYANG,PEOPLES R CHINA
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1993年 / 167卷 / 1-2期
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中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
An fc.c. phase designated Y has been studied by means of high resolution electron microscopy (HREM) and transmission electron microscopy in Al-Li-Cu-Mg alloys. HREM observation and electron diffraction patterns show the intergrowth of another Franker-Kasper domain (designated D) with the Y phase. The D domain can grow on both the (001) and the (111) planes of the Y phase. The orientation relationships between the D domain and the Y phase are [110]Y//[100]D, (111BAR)Y//(001)D and [110]Y//[100]D, (001)Y//(010)D.
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页码:L1 / L4
页数:4
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