FLOW-STRESS ANISOTROPY CAUSED BY GEOMETRICALLY NECESSARY BOUNDARIES

被引：72

作者：

HANSEN, N

JENSEN, DJ

机构：

[1] Materials Department, Risø National Laboratory

来源：

ACTA METALLURGICA ET MATERIALIA | 1992年 / 40卷 / 12期

关键词：

D O I：

10.1016/0956-7151(92)90040-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructural anisotropy of deformed metal is related to the formation of geometrically necessary boundaries such as dense dislocation walls and microbands. These boundaries have a macroscopic orientation with respect to the sample axes and they can resist slip due to a high concentration of dislocations. A model has been proposed for this microstructural anisotropy based on the assumptions that (i) the average slip plane is at an angle of 45-degrees to the direction of the applied stress and that (ii) a strengthening parameter is the mean distance in the slip plane between the geometrically necessary boundaries. For different macroscopic arrangements of such boundaries, the model predictions are in good qualitative and quantitative agreement with experiments.

引用

页码：3265 / 3275

页数：11

共 45 条

[1] ANBAEL A, 1991, ANISOTROPY LOCALIZAT, P672
[2] ARMSTRONG RW, 1962, PHILOS MAG, V11, P1135
[3] A COMPARATIVE INVESTIGATION OF SURFACE RELIEF STRUCTURES AND DISLOCATION MICROSTRUCTURES IN COLD-ROLLED ALUMINUM
BARLOW, CYJ
BAY, B
HANSEN, N
[J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1985, 51 (02): : 253 - 275
[4] THE PLASTIC ANISOTROPY OF 2-PHASE ALUMINUM-ALLOYS .1. ANISOTROPY IN UNIDIRECTIONAL DEFORMATION
BATE, P
ROBERTS, WT
WILSON, DV
[J]. ACTA METALLURGICA, 1981, 29 (11): : 1797 - 1814
[5] OVERVIEW NO-96 - EVOLUTION OF FCC DEFORMATION STRUCTURES IN POLYSLIP
BAY, B
HANSEN, N
HUGHES, DA
KUHLMANNWILSDORF, D
[J]. ACTA METALLURGICA ET MATERIALIA, 1992, 40 (02): : 205 - 219
[6] DEFORMATION STRUCTURES IN LIGHTLY ROLLED PURE ALUMINUM
BAY, B
HANSEN, N
KUHLMANNWILSDORF, D
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 113 : 385 - 397
[7] Boehler J.-P, 1991, ANISOTROPY LOCALIZAT
[8] A NEW WAY TO INCLUDE THE GRAIN SHAPE IN TEXTURE SIMULATIONS WITH THE TAYLOR MODEL
BUNGE, HJ
WAGNER, F
WELCH, PI
VANHOUTTE, P
[J]. JOURNAL DE PHYSIQUE LETTRES, 1985, 46 (23): : 1109 - 1113
[9] ORIENTATION DISTRIBUTION, ELASTIC AND PLASTIC ANISOTROPY IN STABILIZED STEEL SHEET
BUNGE, HJ
ROBERTS, WT
[J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1969, 2 : 116 - &
[10] BUNGE HJ, 1988, DIRECTIONAL PROPERTI, P1

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