On the influence of the grain boundary misorientation on the plastic deformation of aluminum bicrystals

Zaefferer, Stefan; Kuo, Jui Chao; Zhao, Z.; Winning, Myrjam; Raabe, Dierk

doi:10.1016/s1359-6454(03)00259-3

Cited by 162 publications

(53 citation statements)

References 32 publications

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“…The strength of the method lies particularly in properly mapping the strong kinematical influence of crystalline anisotropy during plastic straining, which as a rule also leads to the prediction of the correct tendency in the resulting orientation changes. This has been shown in a number of studies [4,[11][12][13][14][15][16] where predictions obtained by the crystal plasticity finite element method were compared in detail with corresponding micromechanical experiments with respect to strain, texture and forces. Conventional crystal plasticity models (e.g.…”

Section: Motivationmentioning

confidence: 91%

On the origin of deformation-induced rotation patterns below nanoindents

et al. 2008

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Section: Motivationmentioning

confidence: 91%

On the origin of deformation-induced rotation patterns below nanoindents

et al. 2008

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“…28) Zaefferer et al 21) elucidated the influence of GB on deformation up to 30% strain using aluminum bicrystals with 8.7…”

Section: Affected Zone Formation Across Gbmentioning

confidence: 99%

“…Several EBSD studies have been conducted using aluminum bicrystals deformed in cold 21) or hot plane strain compression 22) and niobium bicrystals in cold rolling. 23) In the present study, we examine the effect of GB on deformation in an aluminum bicrystal specimen having a common tensile axis of [100].…”

Section: Introductionmentioning

confidence: 99%

The Effect of a Grain Boundary on Deformation in an Aluminum Bicrystal with a Common Tensile Axis of [100]

Kashihara

Wert²

2006

Mater. Trans.

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The effect of a grain boundary on deformation has been examined using an aluminum bicrystal specimen composed of crystals having a common tensile axis of [100] by the measurement of orientation change with the electron backscatter diffraction technique. After deformation to a strain of 20%, the crystal rotation axis (CRA) map, which provides the orientation distribution of crystal rotation axes relative to the initial crystal orientations, reveals areas affected by the grain boundary. The thickness of the affected zone was 100 mm in one crystal and 150 mm in the other. In both crystals, the crystal rotation axis relative to the initial crystal orientation differed between the affected zone and the crystal interior. In the crystal interior, two slip systems showed a higher activity than the other slip systems, whereas in the affected zone, three or four slip systems were more active than the other slip systems. The CRA map showed that the width and shape of the affected zones across the grain boundary were not symmetrical with respect to the grain boundary.

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“…[2] Cryomilling, mechanical milling at cryogenic temperature, is one of the few processing approaches available for the fabrication of large quantities of nanostructured materials, thereby making it possible for nanostructured materials to be commercialized. [3] Several researchers have found that the bulk nanostructured metals, [3] metal matrix nanocomposites, [4] and intermetallic compounds [5] prepared by cryomilling and subsequent consolidation steps have shown greatly improved mechanical properties compared to the conventional counterparts. No matter how exciting and promising a technology is, its ultimate realization is invariably dependent on economic success.…”

Section: Receivedmentioning

confidence: 99%

Comparison of Single Crystal Simple Shear Deformation Experiments with Crystal Plasticity Finite Element Simulations

Roters¹,

Wang²,

Kuo³

et al. 2004

Adv Eng Mater

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polymer substrates. The type of conductive filler considerably determines the characteristics of nucleation, growth and the electroforming of the product microstructures.The development of an ideal 2-component combination, also besides the commercially available polymers, is necessary. Here, also the use of polymer material, which is intrinsically conductive because of the chemical polymer structure, will promise interesting results.A further important part of investigations will be the production of metallic mold inserts for the injection molding of templates of the important hole type and the following electroforming and replication.Electrochemical investigations like voltamograms i = f(E) and transients i = f(t) on the properties of conductive polymers will exhibit detailed qualitative and quantitative information about the processes at the interface polymer-electrolyte. This article presents an investigation on the evolution of the crystallographic texture and of the equivalent strain distribution during simple shear deformation of a pure Al single crystal. Previous studies in which we presented detailed comparisons between crystal plasticity finite element simulations and corresponding experiments under plane strain load revealed in part a disturbing influence of friction on the results. [1±6] This effect impedes the validation of advanced crystal plasticity finite element methods. ReceivedFriction between the tool and the specimen introduces two main problems into such tests rendering validation efforts a difficult task: First, it introduces additional shear stress components of unknown magnitude. Second, its magnitude changes during loading in an unknown fashion as deformation proceeds. Hence, a more quantitative approach lies in using simple shear deformation experiments since they do not involve friction.The structure of this article is as follows: First, we provide a concise review of earlier work on simple shear experiments. Second, we describe the experimental procedure. Third, we give a brief introduction to the model approach and explain how we determined the parameters of the underlying constitutive model. Fourth, we compare the experimental observations with the model predictions in terms of the texture evolution and the strain distribution.

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On the influence of the grain boundary misorientation on the plastic deformation of aluminum bicrystals

Cited by 162 publications

References 32 publications

On the origin of deformation-induced rotation patterns below nanoindents

On the origin of deformation-induced rotation patterns below nanoindents

The Effect of a Grain Boundary on Deformation in an Aluminum Bicrystal with a Common Tensile Axis of [100]

Comparison of Single Crystal Simple Shear Deformation Experiments with Crystal Plasticity Finite Element Simulations

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