MICROSCOPIC CHARACTERIZATION OF WALLS OF DISLOCATION CELLS OBTAINED BY PLASTIC FATIGUE OF 5N POLYCRYSTALLINE ALUMINUM

被引：6

作者：

HAMEL, A

THOLLET, G

ESNOUF, C

FOUGERES, R

机构：

[1] INSA Lyon, Villeurbanne, Fr, INSA Lyon, Villeurbanne, Fr

来源：

SCRIPTA METALLURGICA | 1987年 / 21卷 / 09期

关键词：

ALUMINUM METALLOGRAPHY - Microstructures - CRYSTALLOGRAPHY - CRYSTALS - Dislocations - FATIGUE OF MATERIALS - MICROSCOPIC EXAMINATION;

D O I：

10.1016/0036-9748(87)90348-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The results relating to the characterization of dislocation cells obtained from fatigued high-purity polycrystalline aluminum are presented. Thanks to the use of Kikuchi lines, the role of the dislocation cell walls is demonstrated. The nature and the amplitude of disorientation have been determined, namely, close to the walls of the same cell. The results are analyzed from the point of view of internal constraints by considering the wall formed by a single sub-joint or by two opposite-sign sub-joints. The latter hypothesis seems to be in agreement with the mechanical behavior derived from fatigue tests.

引用

页码：1195 / 1200

页数：6

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