A microdiffraction method for the characterization of partial disclinations in plastically deformed metals by TEM

被引：0
|
作者：
Klemm, V [1 ]
Klimanek, P [1 ]
Seefeldt, M [1 ]
机构：
[1] TU Bergakad Freiberg, Inst Met Kunde, D-09596 Freiberg, Germany
来源：
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1999年 / 175卷 / 02期
关键词：
D O I：
10.1002/(SICI)1521-396X(199910)175:2<569::AID-PSSA569>3.3.CO;2-J
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The disclination concept can be used to describe rotational substructures developing under large-strain deformation of crystalline metals. The paper presents a TEM microdiffraction method using local misorientation measurements which allows the identification of disclinations. Copper single as well as polycrystals rolled down to 50% and 70% thickness reduction at room temperature were investigated and partial disclinations were found in triple junctions of cell-block boundaries. The power of the partial disclinations lies in the range of 1.5 degrees to 2 degrees, in agreement with theoretical expectations.
引用
收藏
页码：569 / 576
页数：8
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