Strain energy release maximization model for evolution of recrystallization textures

Lee, Dong Nyung

doi:10.1016/s0020-7403(99)00095-8

Cited by 66 publications

(35 citation statements)

References 25 publications

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“…A variation of the texture with depth is proposed, too [15,18]. Regarding the recrystallization texture, model predictions for bcc metals [15,16,19,20] but also experimental results [15,21,22] are somehow diverse: from sharpening the texture over rotating the texture, depleting different fractions of the texture (alpha vs. gamma fibre) to leaving the texture unchanged. In addition, recovery with selective grain growth versus recrystallization, i.e., nucleation of new grains and their growth is discussed in literature [22,23].…”

Section: Texture Analysismentioning

confidence: 99%

Quantitative Microstructure and Defect Density Analysis of Polycrystalline Tungsten Reference Samples after Different Heat Treatments

Manhard

Balden

Elgeti

2015

Practical Metallography

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In order to provide a solid basis for the correlation of microstructure and hydrogen isotope retention in tungsten, reference samples with different microstructures were prepared from a single batch of polycrystalline tungsten by standardised polishing and heat treatment procedures. Representative samples were analysed by scanning electron microscopy and scanning transmission electron microscopy as well as by electron backscatter diffraction. We show that if the annealing temperature is increased from 1200 to 1500 K, practically only the density of dislocations and grain boundaries with very small misorientations of less than 2° is reduced, while for annealing at 1700 and 2000 K, also the density of high-angle grain boundaries is reduced due to grain growth. Furthermore, the dislocation density is reduced by nearly two orders of magnitude compared to tungsten annealed at 1200 K. We also comment on two different textures on the front and rear side of the samples that were observed both by X-ray diffraction and EBSD.

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Section: Texture Analysismentioning

confidence: 99%

Quantitative Microstructure and Defect Density Analysis of Polycrystalline Tungsten Reference Samples after Different Heat Treatments

Manhard

Balden

Elgeti

2015

Practical Metallography

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“…The relation has been explained in specific examples in references. 23,24) Young's modulus of cubic materials can be calculated When small portion of stressed body is replaced by stress free material, strain energy of system is reduced to area OBC and energy release is represented by area OAB.…”

Section: The Strain Energy Release Maximization Theorymentioning

confidence: 99%

“…The model has been described in detail in recent reviews. 23,24) In this study, a Ti bearing IF steel sheet was cold-rolled by 50 to 95 % and annealed at 695°C for various periods of time to form recrystallization textures. The recrystallization textures were measured using electron back scattering dif-fractions (EBSD) as well as X-ray pole figures focusing on the early stage of recrystallization.…”

Section: Introductionmentioning

confidence: 99%

Recrystallization Textures in Cold-Rolled Ti Bearing IF Steel Sheets.

Hong

Lee

2002

ISIJ International

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The evolution of recrystallization textures in cold-rolled Ti bearing interstitial free (IF) steel sheets were investigated using X-ray pole figures and electron back scattering diffraction (EBSD). A hot band of IF steel was cold-rolled by 50, 80, and 95 %. The deformation texture of cold-rolled steel sheets consisted approximately of the ͗110͘//RD (a fiber) and the ͗111͘//ND (g fiber) with high densities in the {001}͗110͘, {558}͗110͘, and {665}͗110͘ orientations. When annealed at 695°C, the cold rolled sheets developed a recrystallization texture characterized approximately by the g fiber whose main components were approximated by {111}͗112͘, {334}͗483͘, and {665}͗1 1 2.4͘ which is almost the same as {554}͗225͘. The densities of these orientations increased with increasing cold-rolling reduction. The recrystallized {111}͗112͘, {334}͗483͘, and {665}͗1 1 2.4͘ grains were attributed to the {001}͗110͘, {558}͗110͘, and {665}͗110͘ deformation orientations by the strain energy release maximization (SERM) model for recrystallization texture, in which the absolute maximum internal stress direction in the deformed state tends to be parallel to the minimum Young's modulus direction of recrystallized grains.

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“…Principal stress distributions around parallel edge dislocations calculated based on (b) 100 linearly arrayed dislocations with dislocation spacing of 10b, and (c) low energy array of 100 x 100 dislocations. b is Burgers vector and G is shear modulus [8]. We first calculate AMSD in an fcc crystal deformed by a duplex slip of (111) [-101] and (111) [-110] that are equally active.…”

Section: Introductionmentioning

confidence: 99%