Lamination microstructure in shear deformed copper single crystals

被引：39

作者：

Dmitrieva, Olga ^{[3
]}

Dondl, Patrick W. ^{[1
,2
]}

Mueller, Stefan ^{[1
,2
]}

Raabe, Dierk ^{[3
]}

机构：

[1] Univ Bonn, Hausdorff Ctr Math, D-53115 Bonn, Germany

[2] Univ Bonn, Inst Appl Math, D-53115 Bonn, Germany

[3] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

ACTA MATERIALIA | 2009年 / 57卷 / 12期

关键词：

Plasticity; Microstructure; Laminates; Single crystals; Digital image correlation; DEFORMATION; PLASTICITY; EVOLUTION; ALUMINUM; CUTICLE; SCALE;

D O I：

10.1016/j.actamat.2009.03.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the formation of microscopic patterns in a copper single crystal deformed in a shear experiment. Using high-resolution electron backscatter diffraction imaging, we find a band-like microstructure consisting of confined areas in the sample with rotated lattice. Digital image correlation allows us to exactly determine the macroscopic state of deformation of the sample. This data can be used as a side condition to calculate the lamination parameters from the theory of kinematically compatible lamination of separate material regions, each deforming in single slip. The parameters given by the theory agree with the measured properties, i.e. a lattice rotation of 3 degrees and a lamination normal rotated 7 degrees counterclockwise from a < 111 > direction. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：3439 / 3449

页数：11

共 30 条

[1] MICROMECHANICS OF CRYSTALS AND POLYCRYSTALS
ASARO, RJ
[J]. ADVANCES IN APPLIED MECHANICS, 1983, 23 : 1 - 115
[2] FINE PHASE MIXTURES AS MINIMIZERS OF ENERGY
BALL, JM
JAMES, RD
[J]. ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS, 1987, 100 (01) : 13 - 52
[3] Barrett CS, 1940, T AM I MIN MET ENG, V137, P112
[4] 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
[5] Development of localized orientation gradients in fcc polycrystals
Beaudoin, AJ
Mecking, H
Kocks, UF
[J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1996, 73 (06): : 1503 - 1517
[6] Bhattacharya K., 2004, MICROSTRUCTURE MARTE
[7] Dislocation microstructures and the effective behavior of single crystals
Conti, S
Ortiz, M
[J]. ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS, 2005, 176 (01) : 103 - 147
[8] Scanning electron microscopy imaging of dislocations in bulk materials, using electron channeling contrast
Crimp, Martin A.
[J]. MICROSCOPY RESEARCH AND TECHNIQUE, 2006, 69 (05) : 374 - 381
[9] DIEHL J, 1956, Z METALLKD, V47, P331
[10] Dillamore I. L., 1974, Metal Science, V8, P73

← 1 2 3 →