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金属学报  1987, Vol. 23 Issue (4): 262-395    
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会聚束电子衍射对A1中小角度晶界和亚晶界的研究
边为民
东北工学院
LOW-ANGLE BOUNDARIES AND SUB-BOUNDARIES IN Al WITH CONVERGENT BEAM ELECTRON DIFFRACTION
by BIAN Weimin (Northeast Institute of Technology; Shenyang) (Manuscript received 21 February; 1986; revised manuscript 31 July; 1986)
引用本文:

边为民. 会聚束电子衍射对A1中小角度晶界和亚晶界的研究[J]. 金属学报, 1987, 23(4): 262-395.
. LOW-ANGLE BOUNDARIES AND SUB-BOUNDARIES IN Al WITH CONVERGENT BEAM ELECTRON DIFFRACTION[J]. Acta Metall Sin, 1987, 23(4): 262-395.

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摘要: 本文用会聚束电子衍射对纯AI中小角度晶界和亚晶界两侧晶体的取向差进行了精确的测定.定量计算结果:AI中小角度晶界的取向差为1.55°±0.051°.亚晶界的取向差为0.32°±0.037°.并对单个刃位错产生的错向角进行了测量,结果是:0.22°±0.036°.同时对该方法的精度与误差进行了分析。最后对小角度晶界和亚晶界的位错网络结构、晶界类型等问题进行了探讨.
Abstract:A method has been advanced to determine precisely the orientation difference of the crystals between low-angle boundaries and sub-boundaries of high purity Al by convergent beam electron diffraction studies. The results show that the ones of low-angle and sub-boundaries are 1.55±0.051° and 0.32+0.037° respectively, as well as the curved angle of the crystal by single edge dislocation is 0.22±0.036°. The accuracy and error of the method have been analysed. Some problems concerning their structure of dislocation network and type were also discussed.
收稿日期: 1987-04-18     
1 Spencer J P, Humphreys C J, Hirsch P B. Philos Mag, 1972; 26: 193
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