Effect of fine second phase particles on deformation structure in cold rolled copper single crystals

Single crystals and polycrystals of aluminium containing non-deformable second-phase particles of silicon, have been deformed, and the resultant structures investigated by microscopy and by X-ray and microtexture techniques. The particle size is found to influence the scale of the deformation bands formed, and there is evidence that particles may affect the nucleation of these bands. The deformed materials were recrystallized, and the effect of particle stimulated nucleation on the weakening of the rolling texture is discussed with reference to a computer simulation. In contrast, the recrystallization texture of particle-containing single crystals deformed on only two slip systems is sharp, and it is shown that the texture components are consistent with plasticity theory.

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The Formation of Large Local Lattice Rotations, at Second Phase Particles in Single Crystals Deformed to Large Strains

Strength of Metals and Alloys ◽

10.1016/b978-1-4832-8412-5.50113-2 ◽

1979 ◽

pp. 663-668

Author(s):

F.J. Humphreys

Keyword(s):

Single Crystals ◽

Large Strains ◽

Second Phase ◽

Second Phase Particles ◽

Local Lattice

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Directional annealing of cold-rolled copper single crystals

Acta Materialia ◽

10.1016/s1359-6454(01)00384-6 ◽

2002 ◽

Vol 50 (4) ◽

pp. 805-813 ◽

Cited By ~ 20

Author(s):

I Baker ◽

J Li

Keyword(s):

Single Crystals ◽

Cold Rolled ◽

Copper Single Crystals

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Measuring and Modelling the Microstructures of Two-Phase Aluminium Alloys after Deformation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.715-716.23 ◽

2012 ◽

Vol 715-716 ◽

pp. 23-32 ◽

Cited By ~ 6

Author(s):

John F. Humphreys ◽

Pete S. Bate ◽

Ali Gholinia ◽

Ian Brough

Keyword(s):

Aluminium Alloys ◽

Second Phase ◽

Two Phase ◽

New Techniques ◽

Deformation Microstructure ◽

Deformation Structures ◽

Deformable Particles ◽

Second Phase Particles ◽

Cold Rolled ◽

Ebsd Method

The effect of second-phase particles on the deformation and annealing behaviour of metals is re-assessed in the light of some new techniques. Using an EBSD method which provides much improved angular resolution, the effect of small non-deformable particles on the homogeneity of the deformation microstructure has been quantified. The presence of micron sized second-phase particles alters the deformation microstructure adjacent to particles, and a 3-d investigation of the deformation structures associated with large (>1μm) second-phase particles in cold rolled aluminium alloys has been carried out using 3-d FIB sectioning combined with EBSD, and the microstructures compared with the predictions of 3-d CPFEM modelling. The effects of grain orientation, strain and particle size have been investigated, and the results compared with earlier TEM investigations of such microstructures.

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Orientation Mapping Study on the Inhomogeneous Microstructure Evolution during Annealing of 6013 Aluminum Alloy

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.163.13 ◽

2010 ◽

Vol 163 ◽

pp. 13-18 ◽

Cited By ~ 8

Author(s):

M. Bieda-Niemiec ◽

Krzystof Sztwiertnia ◽

A. Korneva ◽

Tomasz Czeppe ◽

R. Orlicki

Keyword(s):

Aluminum Alloy ◽

Particle Distribution ◽

Phase Particle ◽

Second Phase ◽

Transmission Electron ◽

Orientation Mapping ◽

Initial Stage ◽

Second Phase Particles ◽

Cold Rolled

Orientation mapping in transmission electron microscope was successfully applied to study microstructural changes at the initial stage of recrystallization in the aluminum alloy with a bimodal second-phase particle distribution. The alloy samples were reversibly cold rolled resulting in the formation of laminar structure with zones of localized strain around large second-phase particles. Orientation mapping and in-situ investigations carry information about the processes which are active in the deformation zones during annealing.

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Grain Growth Behavior of a Rapidly Solidified Fe-10Cr-8A1 Alloy

MRS Proceedings ◽

10.1557/proc-80-261 ◽

1986 ◽

Vol 80 ◽

Author(s):

M. J. Maloney ◽

A. J. Garratt-Reed ◽

G. J. Yurek

Keyword(s):

Grain Growth ◽

Hot Isostatic Pressing ◽

Primary Recrystallization ◽

Second Phase ◽

Gas Atomization ◽

Second Phase Particles ◽

Cold Rolled ◽

Grain Growth Behavior ◽

Rapidly Solidified ◽

Twin Roll

AbstractA rapidly solidified Fe-10Cr-8Al alloy that contained a dispersion of very fine MnS and Al203 particles was produced by a gas atomization/twin-roll quenching technique. The RS particulates were consolidated by hot isostatic pressing, and the consolidated alloy was hot forged, and then hot and cold rolled. Grain growth took place during primary recrystallization of the alloy; however, once primary recrystallization was complete, the dispersion of second phase particles was effective in pinning alloy grain boundaries.

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