ON THE CONFIGURATION OF SUPERLATTICE DISLOCATION PAIRS IN THE ORDERED L12 STRUCTURE

被引:17
作者
FELLERKNIEPMEIER, M
SCHEUNEMANNFRERKER, G
机构
[1] Technische Universität Berlin, Institut für Metallforschung, Berlin 12, BH 18
来源
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1990年 / 62卷 / 01期
关键词
D O I
10.1080/01418619008244336
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Habit plane normals of superdislocation pairs cutting through the L12 γ′ phase of a single-crystal Ni-based superalloy at 1253 K were determined by transmission electron microscopy techniques. Isotropic elastic theory was used to calculate the minimum of elastic interaction energy between the dislocations of a pair as function of their character and of the orientation of the habit planes. The habit planes observed are in excellent agreement with these calculations. © 1990 Taylor & Francis Group, LLC.
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页码:77 / 88
页数:12
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