A 2-PARAMETER DESCRIPTION OF HETEROGENEOUS DISLOCATION DISTRIBUTIONS IN DEFORMED METAL CRYSTALS

被引：257
作者：
MUGHRABI, H
机构：
[1] Univ Erlangen-Nuernberg, Erlangen, West Ger, Univ Erlangen-Nuernberg, Erlangen, West Ger
来源：
MATERIALS SCIENCE AND ENGINEERING | 1987年 / 85卷 / 1-2期
关键词：
CRYSTALS - Dislocations - METALLOGRAPHY - Mathematical Models;
D O I：
10.1016/0025-5416(87)90463-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A two-parameter model of heterogeneous dislocation distributions (cell structures) in deformed metals has been developed. The model permits a description of the effective mechanical and energetic properties of (one-dimensional) cell structures in terms of the local properties (dislocation densities and volume fractions) of cell walls and cell interiors and includes the limiting case of the homogeneous dislocation distribution. Long-range internal stresses that arise unavoidably in heterogeneous dislocation distributions during deformation are an important feature of the model.
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页码：15 / 31
页数：17
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