Effect of Simple Shear Deformation Prior to Cold Rolling on Texture and Ridging of 16% Cr Ferritic Stainless Steel Sheets

Miyamoto, Hiroyuki; Xiao, Te; Uenoya, Toshiyuki; Hatano, Masaharu

doi:10.2355/isijinternational.50.1653

Cited by 30 publications

(12 citation statements)

References 39 publications

(41 reference statements)

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“…5 Improvement of c-fibre recrystallisation texture has been attempted by several approaches, such as controlling the chemical composition, 3 solidification structures, 1 thermomechanical processing, [6][7][8][9][10] hot band annealing conditions, 10 intermediate annealing between cold rolling, 11 and cold rolling reduction ratio 3 ; employing the strip casting 1,[12][13][14] ; and changing the strain path by a unique deformation such as equal channel angular pressing. 15 Many papers have been presented from the view point of increasing the intensity of c-fibre recrystallisation texture through optimising thermomechanical processing and have proposed decreasing finisher delivery temperature and increasing deformation bands in hot rolled band. [6][7][8][9] However, little work has been performed to improve the uniformity of c-fibre recrystallisation texture by controlling the thermomechanical processing and clarify the corresponding recrystallisation texture formation mechanism in FSSs.…”

Section: Introductionmentioning

confidence: 99%

Development of γ-fibre recrystallisation texture in medium–chromium ferritic stainless steels

Gao

Liu

et al. 2014

Materials Science and Technology

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The texture development and c-fibre recrystallisation texture formation mechanism of ferritic stainless steels under different rolling processes were investigated. It was shown that the surface texture development was absolutely different from the centre texture development. In conventional rolled band, strong a-fibre was formed at the centre layer and it was weakened after hot band annealing; after cold rolling, the centre texture was characterised by sharp a-fibre and weak c-fibre with a peak at {111},110., and non-uniform c-fibre recrystallisation texture was developed. By contrast, in warm rolled band, the centre texture consisted of weakened a-fibre and sharpened c-fibre, and {111},112. became the prominent component after hot band annealing. The a-fibre and c-fibre with a peak at {111},112. were intensified at the centre texture after cold rolling, resulting in the formation of uniform c-fibre recrystallisation texture. It was indicated that the formation mechanism of c-fibre recrystallisation texture was closely dependent on hot rolling process.

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Section: Introductionmentioning

confidence: 99%

Development of γ-fibre recrystallisation texture in medium–chromium ferritic stainless steels

Gao

Liu

et al. 2014

Materials Science and Technology

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“…As shown in Figure 8 g, the texture of the 90%-740 °C steel is consistent with the specimen at 90%-720 °C, but the maximum intensity of the α-fiber texture at (001)[1

0] increases to 8.37, and the intensity of the γ-fiber textures increase to 13.1 for (111)[1

0] and 12.6 for (111)[0

1], respectively. According to the literature, the formation of high-density γ-fiber texture in a stainless steel plate is beneficial to improve the formability of the material [ 24 , 25 ]. As annealing temperature increased to 770 °C, the α-fiber texture disappeared and the strength of the γ-fiber texture decreased gradually.…”

Section: Resultsmentioning

confidence: 99%

Effect of Cold-Rolling Reduction on Recrystallization Microstructure, Texture and Corrosion Properties of the X2CrNi12 Ferritic Stainless Steel

Wang³

et al. 2022

Materials

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X2CrNi12 ferritic stainless steel has a wide range of application prospects in the railway transportation, construction, and automobile fields due to its excellent properties. The properties of X2CrNi12 ferritic stainless steel can be further improved by cold-rolling and subsequent annealing treatment. The purpose of this work is to investigate the effect of cold-rolling reduction on the microstructure, texture and corrosion properties of the recrystallized X2CrNi12 ferritic stainless steel by using SEM, TEM, EBSD and electrochemical testing technology. The results show that the crystal orientation characteristics of the cold-rolled sheet could be inherited into the annealed sheet. The higher cold-rolling reduction could promote the deformed grains rotating into the {111}<uvw> orientation, increasing storage energy and driving force for recrystallization, which could reduce the recrystallized grain size. The orientation densities of α-fiber and γ-fiber were low at 50% cold-rolling reduction. After recrystallization annealing, a large number of grains with random orientation could be produced, and the texture strength was weakened. When the cold-rolling reduction rose to 90%, the γ-fiber texture at {111}<110> was strengthened and the α-fibers, particularly the {112}<110> component, were weakened after recrystallisation annealing, which could improve the formability of the steels. The proportions of special boundaries, i.e., low-angle grain boundaries and low-Σ CSL boundaries, among the grain boundary distribution of the recrystallized X2CrNi12 stainless steel were higher when the reduction was 90%, especially when the annealing temperature was 770 °C. Additionally, the proportion of LAGBs and low-Σ CSL boundaries were 53% and 7.43%, respectively, which improves the corrosion resistance of the matrix, showing the best corrosion resistance.

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“…During cold rolling, the strong {011}AEuvwae fiber texture components (i.e., shear texture components) in the annealed plate are very unstable under plain strain deformation (Ref 24) and tend to rotated toward stable a-fiber and c-fiber texture components, leading to the sharpening of cold rolling a-fiber and c-fiber ( Ref 8,12,25,26), as shown in Fig. 4a.…”

Section: (C)mentioning

confidence: 96%

“…Furthermore, the formation of ridges is closely related to anisotropic plastic strain of grain colonies with similar orientations, although the ridging formation mechanism has not yet been adequately clarified ( . Improvement of the c-fiber recrystallization texture and grain colony distribution for FSSs has been attempted using several approaches, such as controlling the chemical composition, solidification structure, thermo-mechanical processing, annealing condition after hot-rolling and cold-rolling reduction ratio, introducing intermediate annealing during cold rolling, cross rolling, and spread rolling, employing the strip casting and changing the strain path by a unique deformation such as equal channel angular pressing ( Ref 5,[8][9][10][11][12][13][14]. Some studies have paid attention to modifying the characteristics of c-fiber recrystallization texture and spatial distribution of grain colonies through optimization of the cold-rolling process and introducing intermediate annealing during cold rolling.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Texture, and Deep Drawability Under Two Different Cold-Rolling Processes in Ferritic Stainless Steel

Gao

Misra

et al. 2015

J. of Materi Eng and Perform

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In the present study, the through-thickness texture evolution and grain colony distribution in ferritic stainless steel under two different cold-rolling processes have been investigated with the aim to enhance deep drawability. It was shown that in the case of conventional cold-rolling process, at the surface, midthickness between the surface and the center, and center layers, all the textures consisted of very sharp afiber and weak c-fiber with a peak at {111}AE110ae after cold rolling, and non-uniform c-fiber recrystallization textures were formed after final annealing. In case of two-step cold-rolling process, by contrast, all the textures were dominated by sharp a-fiber and weak c-fiber after cold rolling to 50% reduction, and {111}AE112ae became the prominent component after subsequent annealing. The a-fiber and c-fiber with a peak at {111}AE112ae were intensified after cold rolling to 60% reduction, resulting in the formation of uniform c-fiber recrystallization textures after final annealing. Furthermore, after two-step cold-rolling process, the final sheet exhibited a more homogeneous distribution of grain colonies. Therefore, the deep drawability of final sheet was significantly improved after two-step cold-rolling process. It was elucidated that the selective growth mechanism was responsible for the characteristics of c-fiber recrystallization texture under conventional cold-rolling process, whereas c-fiber recrystallization texture development was controlled by the oriented nucleation mechanism in the two-step cold-rolling process.

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Effect of Simple Shear Deformation Prior to Cold Rolling on Texture and Ridging of 16% Cr Ferritic Stainless Steel Sheets

Cited by 30 publications

References 39 publications

Development of γ-fibre recrystallisation texture in medium–chromium ferritic stainless steels

Development of γ-fibre recrystallisation texture in medium–chromium ferritic stainless steels

Effect of Cold-Rolling Reduction on Recrystallization Microstructure, Texture and Corrosion Properties of the X2CrNi12 Ferritic Stainless Steel

Microstructure, Texture, and Deep Drawability Under Two Different Cold-Rolling Processes in Ferritic Stainless Steel

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