scholarly journals Effect of Composition on Recrystallization Texture Formation of Aluminum Extrusions

2020 ◽  
Vol 61 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Masahiro Araki ◽  
Kenji Matsuda
Keyword(s):  
Recrystallization Texture ◽  
Texture Formation ◽  
Aluminum Extrusions

A Study of Recrystallization Texture Formation in Cold Rolled Iron Sheets with X-Ray Diffraction Techniques

1970 ◽  
Vol 14 ◽  
pp. 214-230 ◽  
Author(s):  
M. Matsuo ◽  
S. Hayami ◽  
S. Nagashima
Keyword(s):  
Cold Rolling ◽  
Recrystallization Texture ◽  
High Energy ◽  
Orientation Dependence ◽  
Primary Recrystallization ◽  
Texture Formation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Stable Orientation ◽  
Rotational Orientation

AbstractThe possibility that primary recrystallization textures are influenced by local inhomogeneities of deformation induced in the regions of grain boundaries has been confirmed by comparing the cold rolling and the annealing textures of polycrystalline pure irons which were different in the grain size prior to cold rolling. Analyses were made for the effects of deformation on crystals, namely storage of lattice strain and orientation spread, with application of X-ray diffraction techniques, in order to elucidate the role of in homogeneities of deformation on recrystallization texture formation. Apparent correspondence was found between the orientation dependence of stored strain energy and the textural change on recrystallization. This is a scribed to oriented nucleation in high energy blocks, in the case of originally large-grain material in which the effects of inhomogeneities of deformation are small. But discrepancies arise on this basis in originally small - grain material in which the effects of inhomogeneities of deformation are thought to be considerable. The discrepancy is inferred to arise as an effect of local inhomogeneities of deformation, from the change in the trend of rotational orientation spreads from, a stable orientation and the extent of development of potential nuclei of recrystallization at high energy blocks in the orientation spreads. The change is considered to give rise to the variation in amount of microstrain distribution, which is expressed in recovery characteristics of lattice strains and in the dependence of microstrains on the column length as analyzed by following the procedure of Warren-Averbach.

Effects of Driving Force and Boundary Migration Velocity on Formation of Recrystallization Texture in Cold Rolled Pure Aluminum Sheets

2013 ◽  
Vol 753 ◽  
pp. 257-262 ◽  
Author(s):  
Wei Min Mao ◽  
Ping Yang
Keyword(s):  
Grain Growth ◽  
Driving Force ◽  
Recrystallization Texture ◽  
Pure Aluminum ◽  
Solute Drag ◽  
Texture Formation ◽  
Oriented Growth ◽  
Aluminum Sheets ◽  
Zener Drag ◽  
Cold Rolled

The effects of net driving force for migration of high angle grain boundaries were emphasized beside many other factors which could influence the process of texture formation during recrystallization annealing of 95% cold rolled pure aluminum sheets. The net driving force consists basically of stored energy. However, it could be reduced by recovery, boundary drag, solute drag and Zener drag in different extents, in which only boundary drag is mis-orientation dependent. It was indicated that both oriented nucleation and oriented growth have obvious influence on recrystallization texture, and how far they influence the texture depends also on the level of net driving force when the grain growth starts during annealing. Oriented growth, which is induced by the differences in boundary drag of differently oriented grains, and the corresponding texture formation, could be observed easily when the recrystallization proceeds under relative higher solute drag and Zener drag in commercial purity aluminum. The oriented nucleation process prevails during recrystallization of sufficiently recovered high purity aluminum with very low solute drag and Zener drag, after which strong cube texture forms. In this case the oriented growth indicates limited effect. Both the oriented growth and oriented nucleation will fail if high purity deformation matrix without clear solute drag and Zener drag has not experienced an obvious recovery before recrystallization grain growth, since extremely high net driving force leads to very small critical nucleus size and multiplicity of growing grains, which results in randomization of recrystallization texture.

Early Stages of the Recrystallization Texture Formation in {112} - Oriented Silver Single Crystals

2002 ◽  
Vol 408-412 ◽  
pp. 809-814
Author(s):  
Henryk Paul ◽  
Zdzislaw Jasieński ◽  
Claire Maurice ◽  
Andrzej Piątkowski
Keyword(s):  
Single Crystals ◽  
Recrystallization Texture ◽  
Texture Formation ◽  
Early Stages

scholarly journals Model Calculations of the Recrystallization Texture Formatio in α-Iron

1995 ◽  
Vol 23 (2) ◽  
pp. 87-114 ◽  
Author(s):  
U. Köhler ◽  
H. J. Bunge
Keyword(s):  
Recrystallization Texture ◽  
Selection Process ◽  
Deformation Texture ◽  
Primary Recrystallization ◽  
Texture Formation ◽  
Oriented Growth ◽  
Model Calculations ◽  
Bcc Metals ◽  
Growth Selection ◽  
Essential Assumption

Model calculations of primary recrystallization textures in bcc metals were carried out on the basis of a model which considers oriented nucleation as well as oriented growth. The influence of the input parameters, as deformation texture, nucleation distribution and growth law were investigated systematically. It is shown that the inhomogeneity of the deformed microstructure has to be taken into account. With this essential assumption the main features of the recrystallization texture formation can be explained by a growth selection process according to a 27∘ <110> and 84∘ <110> orientation relationship.

scholarly journals Model Calculations of Recrystallization Texture Formation by Growth Selection

1992 ◽  
Vol 19 (3) ◽  
pp. 125-145 ◽  
Author(s):  
U. Köhler ◽  
E. Dahlem-Klein ◽  
H. Klein ◽  
H. J. Bunge
Keyword(s):  
Growth Rate ◽  
Orientation Relationship ◽  
Recrystallization Texture ◽  
Rotation Angle ◽  
Deformation Texture ◽  
Texture Formation ◽  
Model Calculations ◽  
Rate Law ◽  
Growth Selection

Model calculations of recrystallization texture formation are carried out on the basis of growth selection according to the 40∘〈111〉 orientation relationship. It is shown that the fastest growing “compromise” orientation depends very sensitively on the nature of the deformation texture components, their relative amount and their spread, as well as on the value of the rotation angle and the spread range of the growth rate law. On this basis the cube recrystallization texture as well as the brass recrystallization texture can be modelled without further assumptions. Also modifications of the recrystallization texture due to modifications of the starting deformation texture are sufficiently described by the model.

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