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.

Calculation of the crystal orientation distribution function from synchrotron radiation experimental data

1989 ◽  
Vol 22 (6) ◽  
pp. 559-561 ◽  
Author(s):  
J. A. Szpunar ◽  
P. Blandford ◽  
D. C. Hinz
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Synchrotron Radiation ◽  
Orientation Distribution Function ◽  
Crystal Orientation ◽  
Orientation Distribution ◽  
Pole Figures ◽  
Cold Rolled ◽  
Expansion Coefficients ◽  
Crystal Orientation Distribution Function

Series-expansion coefficients for an orientation distribution function (ODF) of cold-rolled aluminium sheet were calculated from the intensity of Debye–Scherrer rings obtained in an experiment using synchrotron radiation. Calculated and observed pole figures demonstrate that a sufficiently good approximation to the ODF is obtained from coefficients calculated to l = 8.

scholarly journals Texture Analysis by Means of Model Functions

1993 ◽  
Vol 21 (2-3) ◽  
pp. 139-146 ◽  
Author(s):  
Th. Eschner
Keyword(s):  
Distribution Function ◽  
Texture Analysis ◽  
Orientation Distribution Function ◽  
Texture Component ◽  
Computational Efficiency ◽  
Special Functions ◽  
Orientation Distribution ◽  
Model Function

The conception of texture components is widely used in texture analysis. Mostly it is used to describe the orientation distribution function (ODF) qualitatively, and there are only a few special functions used to provide texture component calculations.This paper attempts to introduce another model function describing common texture components and giving a compromise between universality and computational efficiency.

scholarly journals Correlations Between the Rolling Textures in FCC Ni–Co Alloys and the BCC Transformation Textures in Controlled Rolled Steels

1990 ◽  
Vol 12 (1-3) ◽  
pp. 141-153 ◽  
Author(s):  
R. K. Ray ◽  
Ph. Chapellier ◽  
J. J. Jonas
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Rolling Texture ◽  
Orientation Distribution ◽  
Variant Selection ◽  
Rolled Steel ◽  
Orientation Relationships ◽  
Cold Rolled ◽  
Co Alloys ◽  
Stacking Fault Energies

Three fcc Ni–Co alloys with different stacking fault energies (SFE's) were cold rolled 95% and their textures were characterized by the orientation distribution function (ODF) method. BCC transformation textures were calculated from these experimental textures using three different orientation relationships for the γ→α transformation. The transformed ODF's derived from the Bain relationship were much sharper than the ones deduced from the Kurdjumov–Sachs (K–S) or the Nishiyama–Wassermann (N–W) relations. The ferrite texture determined on a controlled rolled steel, heavily deformed in the unrecrystallized γ region, agrees reasonably well with the bcc texture calculated using the K–S relation from the rolled Ni–Co alloy with similar SFE. The major texture components of the ferrite, namely {332}〈113〉 and {311}〈011〉, are found to originate from the two major rolling texture components of the austenite, i.e. the {110}〈112〉(Bs) and {112}〈111〉(Cu), respectively. Such ferrite transformation from heavily deformed austenite seems to follow the K–S relationship without any variant selection. By contrast, the texture of the martensite produced from deformed austenite appears to involve significant amounts of variant selection.

Texture evolution in metals under mechanical stress: Application of a tensile stage on a laboratory X-ray system

2015 ◽  
Vol 1754 ◽  
pp. 123-128 ◽  
Author(s):  
J. te Nijenhuis ◽  
N. Dadivanyan ◽  
D.J. Götz
Keyword(s):  
Distribution Function ◽  
Mechanical Stress ◽  
Orientation Distribution Function ◽  
Mechanical Load ◽  
Texture Evolution ◽  
Orientation Distribution ◽  
Uniaxial Tensile ◽  
X Ray ◽  
Pole Figures ◽  
Main Component

ABSTRACTThe evolution of texture in copper has been studied in situ as a function of the applied mechanical stress. A uniaxial tensile stage was integrated onto a Eulerian cradle in a laboratory X-ray diffraction system, providing a platform for pole figure measurements on samples under an externally applied mechanical load. Thin strips of rolled copper were investigated at various stages of elongation. The pole figures were of good quality such that the orientation distribution function could be well determined. Changes in the orientation distribution function as a function of strain along the β-fiber could be clearly observed; the initial main component S is replaced by the Copper component at higher stages of elongation.

scholarly journals Earing in Deep-Drawing Steels

Texture ◽  
1974 ◽  
Vol 1 (3) ◽  
pp. 173-182 ◽  
Author(s):  
G. J. Davies ◽  
D. J. Goodwill ◽  
J. S. Kallend
Keyword(s):  
Distribution Function ◽  
Cold Rolling ◽  
Fourth Order ◽  
Orientation Distribution Function ◽  
Deep Drawing ◽  
Orientation Distribution ◽  
Rolling Reduction ◽  
Crystallite Orientation ◽  
Cold Rolling And Annealing ◽  
Cold Rolled

The variations of the fourth-order coefficients of the crystallite orientation distribution function, with rolling reduction have been determined after cold-rolling and annealing for a deep-drawing quality rimming steel and an aluminium-killed steel. These coefficients influence drawability and earing behaviour and by the manipulation of the coefficients in the distribution function of a 60% cold-rolled and annealed rimming steel, a hypothetical non-earing sheet texture has been derived. By comparison with the actual sheet texture those textural components which most affect earing behaviour are identified.

scholarly journals Deformation and Recrystallization Textures in a C–Si–Mn–V Dual Phase Steel

1993 ◽  
Vol 21 (1) ◽  
pp. 39-53 ◽  
Author(s):  
D. K. Mondal ◽  
R. K. Ray
Keyword(s):  
Distribution Function ◽  
Orientation Distribution Function ◽  
Dual Phase Steel ◽  
Intercritical Annealing ◽  
Orientation Distribution ◽  
Dual Phase ◽  
Phase Structures ◽  
Cold Rolled ◽  
The Difference ◽  
Lower Temperature

Dual phase structures were produced in a C–Si–Mn–V steel from both ferrite-pearlite and martensitic structures by intercritical annealing at 750℃ and 810℃. Samples with different distributions of ferrite and martensite were cold rolled 60% and then recrystallized at 650℃ and 800℃ for different lengths of time. Texture measurements were carried out on the cold rolled as well as recrystallized materials using both the conventional pole-figure and ODF (Orientation Distribution Function) methods. The results indicated the presence of a reasonably strong 〈111〉 ∥ ND fibre in the cold deformed alloy. The textures in the recrystallized condition were found to be basically similar to the ones for the corresponding cold deformed materials, with the difference that the pole densities were somewhat weaker in the former. A weak {11,11,4} fibre and a weak and incomplete {337} fibre have also been observed in both the cold deformed and recrystallized materials. Samples recrystallized at the lower temperature of 650℃ exhibited a sharper {111} texture as compared to the 800℃ annealed materials and this difference in texture intensities were perceptibly reflected in the corresponding r-values.

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