Effect of Hot Band on Texture Evolution and Plastic Anisotropy in Aluminium Alloys

This contribution presents the evolution of crystallographic texture during thermomechanical processing of Al alloys. It is shown that the nature of crystallographic changes involved in deformation and recrystallization is strongly affected by the variety of initial (pre-rolling) state of a given metallic system. Four hot rolled Al strips of identical chemical composition and different textures were subjected to further thermomechanical processing with equal technological characteristics. Although the pre-rolling textures were first destroyed by the deformation, while annealing accounted for further qualitative and quantitative crystallographic changes in the investigated polycrystalline systems, it seems that there is still a great influence of the hot band texture on the texture dependent properties. Various qualitative and quantitative texture characteristics of annealed sheets ensured diverse Lanford value curves, which is a direct consequence of the crystallographic features developed in the hot bands. The Cube-dominated hot band ensured a strong V-shaped profile after cold rolling and subsequent recrystallization, whereas it was shown that a weak pre-rolling texture is more advantageous in terms of both normal and planar anisotropy.

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Application of Recrystallization Texture Evolution Model to Predict Plastic Formability in Steel Strips

Materials Science Forum ◽

10.4028/www.scientific.net/msf.783-786.1954 ◽

2014 ◽

Vol 783-786 ◽

pp. 1954-1960

Author(s):

Toshiharu Morimoto ◽

Y. Fuyuki ◽

A. Yanagida ◽

Jun Yanagimoto

Keyword(s):

Recrystallization Texture ◽

Texture Evolution ◽

Steel Strip ◽

Rolling Texture ◽

Interstitial Free ◽

If Steel ◽

Taylor Model ◽

Steel Strips ◽

Cold Rolled ◽

Hot Rolled

T.M.C.P.(Thermo Mechanical Control Processing) has been widely used to improveplastic formability in steel strips. We have produced interstitial free steel(IF steel) strips and ferriticstainless-steel strips through T.M.C.P. rolling method. Optimizing conditions of hot rolling, hotrolled annealing, cold rolling and cold rolled annealing, we developed texture prediction model. Wecan predict rolling texture accurately using the conventional Taylor model. Moreover, we preciselypredict recrystallization texture classifying the total number of microscopic􀀁 slips which arecalculated using the Taylor model. We consider that these calculated results provednucleation-oriented model and two types of recrystallization and grain growth mechanisms exit inour studies. One mechanism is that grains which had the small total number of microscopic slips arepreferred orientation for the hot rolled and annealed ferritic stainless-steel strip. The othermechanism is that grains which had the high total number of microscopic slips are preferredorientation for the cold rolled and annealed IF steel strip.

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Texture characteristics controlled by single slip plane slipping in the warm-rolled Fe-14Mn-5Si-9Cr-5Ni shape memory alloy

Journal of Materials Research ◽

10.1557/jmr.2009.0228 ◽

2009 ◽

Vol 24 (6) ◽

pp. 2097-2106

Author(s):

H. Li ◽

F. Yin ◽

T. Sawaguchi ◽

X. Zhao ◽

K. Tsuzaki

Keyword(s):

Shape Memory Alloy ◽

Shape Memory ◽

Pole Figure ◽

Slip Plane ◽

Texture Evolution ◽

Rolling Texture ◽

Local Deformation ◽

Deformation Structure ◽

Single Slip ◽

Texture Characteristics

To clarify the texture evolution mechanism of Fe-Mn-Si-based shape memory alloys, the rolling texture of an Fe-14Mn-5Si-9Cr-5Ni shape memory alloy is investigated during rolling to a final reduction of 82% at 873 K. A new rolling texture caused by single slip plane slipping is observed from such alloy, which is different from the conventional copper-type and brass-type textures. By means of the {111} pole figure scattering analysis of the local deformation structure, we conclude that such single slip plane slipping results in the weakness of brass orientation in the α fiber and the great enhancement of β fiber connecting S′ {331}<213> and B′ orientations {110}<114>.

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Texture Evolution in a Hot Rolled Austenitic Stainless Steel

Textures and Microstructures ◽

10.1155/tsm.13.227 ◽

1991 ◽

Vol 13 (4) ◽

pp. 227-241 ◽

Cited By ~ 6

Author(s):

C. D. Singh ◽

V. Ramaswamy ◽

C. Suryanarayana

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Dynamic Recrystallization ◽

Recrystallization Texture ◽

Texture Evolution ◽

The Other ◽

Shear Texture ◽

Hot Band ◽

Hot Rolled

The ODF analysis of the surface texture of the hot band of austenitic stainless steel reveals the presence of orientations of shear texture. These orientation elements are mainly distributed along two limited tubes of preferred orientations. The fibre of the first tube has its axis 〈110〉 ‖ RD and runs from {001} 〈110〉 to an orientation near {112}〈110〉 whereas the fibre of the second tube is inclined 30° from ND towards RD (i.e. 〈110〉 30° ND fibre) and stretches from {111}〈112〉 + 5° to the orientation near {112}〈110〉. The shear texture components are formed at the surface by shearing during hot rolling. Once they are formed, they get partly recrystallized by dynamic in situ recrystallization. On the other hand a duplex texture (i.e. retained copper type and recrystallization type) is present at the centre level of the hot band. The orientation elements of copper type (i.e. 〈110〉 60° ND fibre) are {011}〈112〉, ≈ {123}〈634〉 and {112}〈111〉 whereas the recrystallization texture components are dominated by cube {001}〈100〉 orientation and other RD rotated cubes through oriented nucleation during dynamic recrystallization.

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Simulation of Texture Evolution during Hot Rolling Deformation in FCC Materials

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.345-346.869 ◽

2007 ◽

Vol 345-346 ◽

pp. 869-872 ◽

Cited By ~ 1

Author(s):

Shi Hoon Choi ◽

Y.S. Song ◽

B.J. Kim ◽

Hyoung Wook Kim ◽

Suk Bong Kang

Keyword(s):

Hot Rolling ◽

Texture Evolution ◽

Rolling Texture ◽

Fe Analysis ◽

Self Consistent ◽

Octahedral Slip ◽

Fcc Materials ◽

Hot Rolled ◽

Rolling Deformation ◽

Deformation Gradients

The evolution of hot rolling texture in FCC materials has been simulated numerically using a visco-plastic self-consistent (VPSC) polycrystal model. A finite element (FE) analysis with ABAQUS/StandardTM was conducted to evaluate the deformation gradients during hot rolling deformation. In order to capture crystallographic rotation during hot rolling deformation, an octahedral slip system was considered in a microscopic hardening model. The FE analysis with the VPSC polycrystal simulations successfully predicted the inhomogeneous texture development through the thickness direction in the hot-rolled Al-5wt%Mg alloy sheets.

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On the through-process texture evolution assessment in grain oriented Fe-3 wt% Si steel produced by a novel directional inoculation technique

Scientific Reports ◽

10.1038/s41598-021-84360-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Snehashish Tripathy ◽

Sandip Ghosh Chowdhury

Keyword(s):

Magnetic Field ◽

Hot Rolling ◽

Texture Evolution ◽

Lattice Parameter ◽

Soft Magnetic ◽

Oriented Growth ◽

Inoculation Technique ◽

Hot Band ◽

Ebsd Technique ◽

Cast Microstructure

AbstractA novel directional inoculation technique has been designed to cast thin slab ingots containing Goss (or near Goss) oriented components in the as cast microstructure under the combined effect of oriented nucleation and oriented growth. The same has been targeted so as to retain Goss orientations and simultaneously develop γ fiber components (ranging from {111}<$$1\overline{1}0$$ 1 1 ¯ 0 > to {111}<112>) during hot rolling. The designed scheme of directional inoculation achieved oriented nucleation by the effect of exogenously added soft magnetic inoculants under magnetic field and oriented growth by the effect of fast cooling rates prevailing in the mould. The choice of 65Fe–35Co (wt%) system as soft magnetic inoculants was made taking into account the similarity in crystal structure and lattice parameter. The chemically synthesized inoculants under the effect of external magnetic field during solidification were able to exhibit directional inoculation. Variation in the cast microstructure and microtexture by varying the extent of inoculant addition was studied by EBSD technique. The ingots cast under different conditions were subjected to a designed hot rolling schedule and the through process microstructural and microtextural evolution was assessed. It was observed that fine equiaxed grains with initial cube orientations in the as cast structure could lead to the most desirable microstructural as well as microtextural gradient in the hot band.

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