Recrystallisation towards a single texture component in heavily cold rolled tungsten (W) sheets and its impact on micromechanics

2020 ◽  
Vol 86 ◽  
pp. 105084 ◽  
Author(s):  
Jens Reiser ◽  
Carsten Bonnekoh ◽  
Thomas Karcher ◽  
Wilhelm Pfleging ◽  
Daniel Weygand ◽  
...  
Keyword(s):  
Texture Component ◽  
Cold Rolled

On the Development of Copper Textures – Neutron Diffraction Control over a Period of 12 Years –

2004 ◽  
Vol 443-444 ◽  
pp. 239-242 ◽  
Author(s):  
E. Jansen ◽  
Wolfgang Schäfer ◽  
A. Kirfel ◽  
J. Palacios
Keyword(s):  
Data Analysis ◽  
Neutron Diffraction ◽  
Pole Figure ◽  
Texture Component ◽  
Copper Specimen ◽  
Continuous Decrease ◽  
Cold Rolled

The longtime stability of copper textures has been periodically monitored over 12 years by neutron diffraction pole figure measurements on a cold rolled and a partially recrystallized copper specimen, always using the same diffractometer and the same procedure of data analysis. The texture component fractions of 'rolled' copper suffered a continuous decrease over about 8 years and seem to reverse since then. The decrease is accompanied by recrystallization from initial 3 to 34 vol. % at present. Texture changes in the partially recrystallized specimen are less pronounced. In this sample, the fraction of random orientations changed from initially 11 % to 31 % over the about first six years and followed by a decrease to 24 % at present.

Textures and Local Textures in Severely Cold-Rolled and Annealed Ultra-Fine-Grained FeCo Alloy

2005 ◽  
Vol 495-497 ◽  
pp. 731-736 ◽  
Author(s):  
J.N. Deng ◽  
Emmanuel Bouzy ◽  
Jean-Jacques Fundenberger ◽  
Ru Lin Peng ◽  
Chang Shu He ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Temperature Region ◽  
Texture Component ◽  
Metals And Alloys ◽  
Feco Alloy ◽  
High Angle ◽  
Fine Grained ◽  
Local Texture ◽  
Bcc Metals ◽  
Cold Rolled

We find that a severely rolled FeCo alloy has anomalous enhancement of the rotated-cube {100}<011> texture component and a decrease of the {111} components after annealing, which is contrast to the recrystallization behaviors reported in traditional BCC metals and alloys. The local texture measurements show that two kinds of grains with obviously different orientations, i.e. {100} and {111}, are heterogeneously distributed in the deformed specimen and the migration of high-angle grain boundaries is observed after annealing in the disordering temperature region.

Magnetically Controlled Recrystallization Texture in Titanium

2004 ◽  
Vol 467-470 ◽  
pp. 483-488 ◽  
Author(s):  
Dmitri A. Molodov ◽  
A.D. Sheikh-Ali
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Grain Growth ◽  
Texture Component ◽  
Driving Force ◽  
Recrystallization Texture ◽  
Rolling Direction ◽  
Field Direction ◽  
Titanium Sheet ◽  
Cold Rolled

The annealing of cold rolled (82%) titanium sheet at 750°C in a magnetic field of 19.4 Tesla results in a distinct difference between texture peaks when the sample is tilted by +30° or -30° to the field direction around the rolling direction, i.e. c (<0001>)-axis of grains corresponding to one texture component is aligned normal to the field direction. This result is attributed to grain growth affected by an additional driving force arising in a magnetic field by the anisotropy of the magnetic susceptibility of titanium.

Effect of Magnetic Field Direction on Texture Evolution in Cold-Rolled IF Steel Sheet at the Initial Stage of Recrystallization

2011 ◽  
Vol 194-196 ◽  
pp. 75-79
Author(s):  
Yan Wu ◽  
Xiang Zhao ◽  
Chang Shu He ◽  
Liang Zuo
Keyword(s):  
Magnetic Field ◽  
Texture Component ◽  
Field Direction ◽  
Magnetic Field Direction ◽  
If Steel ◽  
Initial Stage ◽  
Field Annealing ◽  
Specimen Orientation ◽  
Cold Rolled ◽  
The Magnetic Field

Sheets of cold rolled (76%) IF steel were annealed at 650°C for 30min under a 12-tesla magnetic field. During the magnetic field annealing, they were placed at the center of the applied field respectively, being oriented differently with respect to the magnetic field direction. The results show that the high magnetic field annealing prevents the evolution from deformed {111}<110> texture component to recrystallized {111}<112> texture component at the initial stage of recrystallization. For the field annealed specimens, altering the specimen orientation to the magnetic field direction during annealing does not change the final annealing textures. The intensity of main {111} texture components presents a similar periodic variation with respect to the specimen orientation to the magnetic field.

The development of the rolling texture in copper measured by neutron diffraction

1971 ◽  
Vol 4 (4) ◽  
pp. 303-310 ◽  
Author(s):  
H. J. Bunge ◽  
J. Tobisch ◽  
W. Sonntag
Keyword(s):  
Neutron Diffraction ◽  
Texture Component ◽  
Deformation Mechanism ◽  
Three Dimensional ◽  
Rolling Texture ◽  
Orientation Distribution ◽  
Distribution Functions ◽  
Anisotropic Hardening ◽  
Pole Figures ◽  
Cold Rolled

Three-dimensional orientation distribution functions of the crystallites in copper sheets, cold rolled to different degrees of reduction, have been determined using neutron diffraction pole figures. The main features of the textures may be represented by the orientation `tube' already described in prior publications. Two ranges of rolling reduction can be distinguished, a lower one (30 to 50%) and a higher one (70 to 95%) the texture changes of which correspond to those calculated after the Taylor theory. In an intermediate range (50 to 70%) a different deformation mechanism occurs which leads to an intermediate (001) [110] texture component. It is supposed that anisotropic hardening may have occurred in this range.

Microstructures and Mechanical Properties of Thermomechanically Processed TiNbSi Alloys for Biomedical Applications

2007 ◽  
Vol 342-343 ◽  
pp. 553-556
Author(s):  
Won Yong Kim
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Elastic Modulus ◽  
Texture Component ◽  
Biomedical Applications ◽  
Rolling Direction ◽  
Fiber Texture ◽  
Β Phase ◽  
Average Grain Size ◽  
Cold Rolled

Mechanical properties and elastic modulus were examined in order to clarify the influence on microstructures in Ti-26Nb-xSi, where x= 0.5, 1 in atomic percent, prepared by arc melting, cold rolling and recrystallization heat treatment. On the basis of microstructural observations and phase analyses, it is evidently revealed that the microstructure of as-quenched sample appeared to mixture appearance consisting of mostly bcc-structured β phase and small amount of orthorhombic-structured α″ phase. Elongated structure parallel to the rolling direction was observed in cold rolled samples, and equiaxed structure with the average grain size of about 20μm was developed for the sample after recrystallization heat treatment. Randomly distributed feature of pole figure was characterized without showing a specific texture component in asquenched sample. Rotated cube, α-fiber and γ-fiber texture components were detected in cold-rolled sample. After recrystallization heat treatment the intensity of α-fiber texture component was markedly decreased, while the rotated cube component becomes sharpened and γ-fiber component remains relatively unchanged. From both elastic modulus and strength point of view recrystallization treatment would be desirable to meet the required mechanical properties of the present alloys for biomedical applications.

Line-Profile Analysis Combined with Texture Analysis for Characterizing Dislocation Distribution in Texture Components of Cold-Rolled Copper Sheets

2016 ◽  
Vol 35 (7) ◽  
pp. 705-713 ◽  
Author(s):  
Kozue Satoh ◽  
Shigeo Sato ◽  
Kenta Yamanaka ◽  
Shigeru Suzuki ◽  
Akihiko Chiba ◽  
...  
Keyword(s):  
Dislocation Density ◽  
Texture Analysis ◽  
Line Profile ◽  
Texture Component ◽  
Profile Analysis ◽  
Line Profile Analysis ◽  
X Ray Diffraction ◽  
Dislocation Densities ◽  
Cold Rolled ◽  
The Individual

AbstractWe described a newly developed characterization technique that dislocation density could be individually determined for each texture component of plastically deformed metals by combining the line-profile analysis with the texture analysis by using X-ray diffraction. This method was applied to major texture components of cube, copper, and brass evolved in cold-rolled copper sheets. The Warren–Averbach procedure using two diffraction peaks was used for estimating the dislocation density. An increase in the dislocation density with the rolling reduction was evaluated for individual texture components. Although the individual texture components underwent the different slip paths, the dislocation densities in these texture components were almost comparable; however, the non-texture component was shown to have a higher dislocation density than the texture components. The recovery and recrystallization proceeded preferentially in the non-texture component.

Anomalous Rolling and Annealing Textures of Cold Rolled Copper Foils

2007 ◽  
Vol 558-559 ◽  
pp. 229-234 ◽  
Author(s):  
Su Hyeon Kim ◽  
Seung Zeon Han ◽  
Chang Joo Kim ◽  
Soon Young Ok ◽  
In Youb Hwang ◽  
...  
Keyword(s):  
Grain Size ◽  
Texture Component ◽  
Recrystallization Texture ◽  
Rolling Direction ◽  
Cube Texture ◽  
Rolling Texture ◽  
Fiber Texture ◽  
Low Intensity ◽  
Copper Foils ◽  
Cold Rolled

Copper foils cold rolled up to 92% reduction exhibited a low intensity of the β-fiber texture and a high intensity of the cube and RD (rolling direction)-rotated cube components. After annealing, the recrystallization texture of the foils could be characterized by the mixture of the cube and the S components. An initial strong cube texture with a large grain size might remain a less developed rolling texture component, cube or RD-rotated cube, which would be the source of the S component in the recrystallization texture.

Electric Field Annealing on 3104 Aluminum Alloy Sheets: Evolution of Microstructure and Texture

2005 ◽  
Vol 105 ◽  
pp. 169-174 ◽  
Author(s):  
Zhuo Chao Hu ◽  
Yu Dong Zhang ◽  
X. Zhao ◽  
Liang Zuo ◽  
Claude Esling
Keyword(s):  
Aluminum Alloy ◽  
Electric Field ◽  
Texture Component ◽  
Cube Texture ◽  
Sample Surface ◽  
Stored Energy ◽  
Field Annealing ◽  
Cold Rolled ◽  
Evolution Of Microstructure

The cold-rolled 3104 aluminum alloy sheets were annealed without and with an electric field. Results show that the electric field can greatly postpone the recovery and recrystallization processes, enhance the Cube texture component. The effect of the electric field lies in that it decreases the concentration of the electronegative vacancies by attracting them to the electropositive sample surface, thus reducing the stored energy for recovery and recrystallization.

scholarly journals The Influence of Molybdenum on the Texture and Magnetic Anisotropy of Fe–xMo–5Ni–0.05C Alloys

1999 ◽  
Vol 31 (4) ◽  
pp. 231-238 ◽  
Author(s):  
H. Abreu ◽  
J. R. Teodósio ◽  
J. Neto ◽  
M. Silva ◽  
C. S. Da Costa Viana
Keyword(s):  
Distribution Function ◽  
Magnetic Anisotropy ◽  
Orientation Distribution Function ◽  
Texture Component ◽  
Texture Evolution ◽  
Rolling Direction ◽  
Orientation Distribution ◽  
Easy Magnetization ◽  
Saturation Induction ◽  
Cold Rolled

Diagrams of remanent induction, Br, versus saturation induction, Bs, for Fe–5Ni–xMo–0.05C alloys, where x is equal to 11%, 15% or 19%, were determined for samples 60%, 80%, 90% and 97% cold rolled and magnetically age-annealed at 610°C for 1h. The texture evolution in those alloys was analysed as a function of rolling reduction, by means of the orientation distribution function (ODF). The results show that a sharp {100} 〈110〉 texture component develops in the 11%-Mo alloy for rolling reductions in excess of 90%. This leads to the highest values of the remanent induction, Br, and of the Br/Bs ratio for this alloy as a result of 〈100〉 directions, the easy magnetization directions, lying at 45° to the rolling direction.

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