In Situ EBSD Investigation of Recrystallization in a Partially Annealed and Cold-Rolled Aluminum Alloy of Commercial Purity

2011 ◽  
Vol 14 (1-2) ◽  
pp. 39-44 ◽  
Author(s):  
Anne-Laure Helbert ◽  
Wei Wang ◽  
François Brisset ◽  
Thierry Baudin ◽  
Richard Penelle
Keyword(s):  
Aluminum Alloy ◽  
Commercial Purity ◽  
Rolled Aluminum ◽  
Cold Rolled

Modeling composition/processing/property relationships in a cold-rolled aluminum alloy

JOM ◽  
1999 ◽  
Vol 51 (11) ◽  
pp. 51-53 ◽  
Author(s):  
I. J. Polmear ◽  
J. E. Tibballs ◽  
B. Rinderer
Keyword(s):  
Aluminum Alloy ◽  
Processing Property ◽  
Rolled Aluminum ◽  
Cold Rolled

Microstructural Coarsening during Annealing of Cold Rolled Aluminum

2004 ◽  
Vol 467-470 ◽  
pp. 209-216 ◽  
Author(s):  
Q. Xing ◽  
X. Huang ◽  
Niels Hansen
Keyword(s):  
Lamellar Structure ◽  
True Strain ◽  
Rolling Texture ◽  
Recrystallization Temperature ◽  
Commercial Purity ◽  
Microstructural Coarsening ◽  
Transmission Electron ◽  
Rolled Aluminum ◽  
Cold Rolled ◽  
Commercial Purity Aluminum

The microstructural evolution during annealing below the recrystallization temperature of a commercial purity aluminum (99wt.% purity) cold rolled to a true strain of 2 has been investigated by transmission electron microscopy concentrating on microstructural and orientational aspects. The deformation microstructure was a typical lamellar structure with extended lamellar boundaries, GNBs (geometrical necessary boundaries), and short interconnecting boundaries, IDBs (incidental dislocation boundaries). The microstructure was divided into regions representing typical rolling texture orientations and regions of other orientations. During annealing the structure coarsened towards an equiaxed structure and it was observed that this coarsening was significantly slower in regions of rolling texture orientations than in regions of other orientations. This difference was discussed based on the characteristics of the deformation structure.

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

2010 ◽  
Vol 163 ◽  
pp. 13-18 ◽  
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.

In-Situ TEM Phase Formation in Cold Rolled Aluminum-Nickel Multilayers

1997 ◽  
Vol 481 ◽  
Author(s):  
H. Sieber ◽  
J. H. Perepezko
Keyword(s):  
Cold Rolling ◽  
Phase Formation ◽  
In Situ Tem ◽  
3 Dimensional ◽  
Thermally Activated ◽  
Dsc Measurements ◽  
Sem And Tem ◽  
Rolled Aluminum ◽  
Cold Rolled

ABSTRACTMultilayer samples of Nickel and Aluminum with an overall composition of Al-20Ni were prepared by cold rolling of elemental foils. The sample microstructures and phases were characterized by XRD, SEM and TEM/SAED, and the reactive phase formation was then examined by DSC measurements. XRD, SEM and TEM measurements show that the rolling procedure results in a decrease of the Al and Ni layer thicknesses (down to 100 nm in average) and a decrease of the grain size (down to less than 50 nm). No phase formation is observed during the cold rolling procedure. In isochronal DSC scans of the Al-Ni multilayers, the formation of the Al3Ni phase was found to be a two step reaction process due to 2-dimensional nucleation and lateral growth and a 3-dimensional phase thickening. While XRD measurements showed Al3Ni as the only phase that forms, more detailed TEM investigations of the samples after DSC treatment also showed a small amount of an amorphous Al-Ni phase, formed by a thermally activated solid state amorphization reaction (SSAR). In-situ TEM heating of the amorphous areas under the electron beam in the microscope yielded the crystallization of the amorphous phase to a B2 structure and a growth of the B2 grains up to 100 nm in size.

3D microband boundary alignments and transitions in a cold rolled commercial purity aluminum alloy

2013 ◽  
Vol 79 ◽  
pp. 15-21 ◽  
Author(s):  
C. George ◽  
B. Soe ◽  
K. King ◽  
M.Z. Quadir ◽  
M. Ferry ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Commercial Purity ◽  
Cold Rolled ◽  
Commercial Purity Aluminum

Annealing behaviour of cold rolled aluminum alloy in a high magnetic field

2006 ◽  
Vol 54 (12) ◽  
pp. 2161-2164 ◽  
Author(s):  
D.A. Molodov ◽  
S. Bhaumik ◽  
X. Molodova ◽  
G. Gottstein
Keyword(s):  
Magnetic Field ◽  
Aluminum Alloy ◽  
High Magnetic Field ◽  
Annealing Behaviour ◽  
Rolled Aluminum ◽  
Cold Rolled

Recrystallization Behaviour of Cold Rolled Aluminum Alloy AA 3103 in a Magnetic Field

2007 ◽  
Vol 558-559 ◽  
pp. 131-136 ◽  
Author(s):  
Sheila Bhaumik ◽  
Xenia Molodova ◽  
Dmitri A. Molodov ◽  
Günter Gottstein
Keyword(s):  
Magnetic Field ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
Crystallographic Texture ◽  
Recrystallization Behavior ◽  
Recrystallization Kinetics ◽  
Rolled Aluminum ◽  
Cold Rolled

The recrystallization behavior of 71% cold rolled aluminum alloy 3103 was investigated by measuring the crystallographic texture and the grain microstructure during heat treatment at 288°C, 310°C and 330°C in a magnetic field of 17 T. The results revealed that the application of a magnetic field substantially enhances recrystallization kinetics.

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