Self-consistent experimental determination of the dislocation line tension and long-range internal stresses in deformed copper crystals by analysis of dislocation …

H Mughrabi - Materials Science and Engineering: A, 2001 - Elsevier
The present TEM study on deformed copper single crystals had several objectives. In a first
step, the line tensions of near-edge and near-screw dislocations were determined directly by …

Dislocation arrangement and residual long-range internal stresses in copper single crystals at large deformations

A Borbély, G Hoffmann, E Aernoudt, T Ungar - Acta materialia, 1997 - Elsevier
Copper single-crystals were wire drawn far into stage III and into the onset of stage IV. TEM
investigations revealed the well known dislocation cell structure. High resolution X-ray …

Dual role of deformation-induced geometrically necessary dislocations with respect to lattice plane misorientations and/or long-range internal stresses

H Mughrabi - Acta Materialia, 2006 - Elsevier
This work is part of a continuing effort to develop a unified picture of the role of geometrically
necessary dislocations (GNDs) in the evolution of the dislocation distribution of …

[引用][C] Effect of strain rate on the dislocation substructure in deformed copper polycrystals

F Cheval, L Priester - Scripta metallurgica, 1989 - Elsevier
Previous studies on the strain rate sensitivity of the stress for copper single crystals and
polycrystals generally agree in defining a limiting value~= 103 s 1 between the static and the …

A two-parameter description of heterogeneous dislocation distributions in deformed metal crystals

H Mughrabi - Materials science and engineering, 1987 - Elsevier
A two-parameter model of heterogeneous dislocation distributions (cell structures) in
deformed metals has been developed. The model permits a description of the effective …

Dislocation cell formation during plastic deformation of copper single crystals

F Prinz, AS Argon - Physica status solidi (a), 1980 - Wiley Online Library
Tapered copper single crystals oriented for single slip are deformed plastically at room
temperature and at 77 K. TEM investigations at resolved shear stress levels of 20, 30, and …

Long-range internal stresses in cell and subgrain structures of copper during deformation at constant stress

S Straub, W Blum, HJ Maier, T Ungar, A Borbely… - Acta materialia, 1996 - Elsevier
Long-range internal stresses in dislocation cell and subgrain structures were investigated
experimentally. The transition of the dislocation structure from cells to subgrains was …

Correlations between stress, strain and dislocation arrangement in weakly deformed copper single crystals

H Mecking, G Bulian - Acta Metallurgica, 1976 - Elsevier
The development of dislocation structure along the stress strain curve in stage I and the
beginning of stage II of Cu single-crystals was followed up by means of etch pits. The …

Quantitative determination of secondary slip in copper single crystals deformed in tension

ZS Basinski, SJ Basinski - Philosophical Magazine, 2004 - Taylor & Francis
To determine the amount and type of secondary slip, the full deformation matrix was
calculated from current orientation and shape measurements at successive strain intervals …

Changes in the dislocation density fluctuations during plastic deformation

F Székely, I Groma, J Lendvai - Scripta materialia, 2001 - Elsevier
Changes in the dislocation density fluctuations during plastic deformation - ScienceDirect Skip
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