Inhomogeneity of rolling texture in fcc metals

Truszkowski, W.; Król, J.; Major, B.

doi:10.1007/bf02661204

Cited by 173 publications

(93 citation statements)

References 3 publications

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“…The higher HMS fractions observed both in the subsurface and near the center of the ARBprocessed sample correlate well with expected increase in the amount of shear deformation in the subsurface layers due to large-draught rolling [16,22,23]. Note that the center layer in our ARB sample was the surface layer in the fifth ARB cycle, and thus also experienced a significant shear strain before being subjected to conditions approaching plane strain compression (PSC) in the sixth cycle.…”

Section: Variation Of Microstructural Parameterssupporting

confidence: 80%

“…The 1 mm thick sample obtained after this rolling was then cut in half. After degreasing and wire-brushing, the halves were stacked and rolled 50% again, applying conditions of large-draught rolling [22,23] and creating a bonding between the two sheets. This rollbonding operation was conducted repeatedly to reach 6 ARB cycles, which corresponds to a total von Mises strain of ε vM = 4.8.…”

Section: Methodsmentioning

confidence: 99%

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Analysis of through-thickness heterogeneities of microstructure and texture in nickel after accumulative roll bonding

2013

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Section: Variation Of Microstructural Parameterssupporting

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Analysis of through-thickness heterogeneities of microstructure and texture in nickel after accumulative roll bonding

2013

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“…The ratio of contact length over average thickness l/h was between 0.5 and 5 to ensure a homogenous rolling [26,27]. Mineral oil was applied as lubricant to reduce surface friction.…”

Section: Materials and Rolling Processmentioning

confidence: 99%

Supercube grains leading to a strong cube texture and a broad grain size distribution after recrystallization

Lin

Zhang

Pantleon

et al. 2015

Philosophical Magazine

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2015). Supercube grains leading to a strong cube texture and a broad grain size distribution after recrystallization. Philosophical Magazine, 95(22), 2427-2449. DOI: 10.1080/14786435.2015 AbstractThis work revisits the classical subject of recrystallization of cold-rolled copper. Two characterization techniques are combined: 3-dimensional X-ray diffraction using synchrotron Xrays, which is used to measure the growth kinetics of individual grains in situ, and electron backscatter diffraction, which is used for statistical analysis of the microstructural evolution. As the most striking result, the strong cube texture after recrystallization is found to be related to a few super large cube grains, which were named supercube grains. These few supercube grains become large due to higher growth rates. However, most other cube grains do not grow preferentially. Because of the few supercube grains, the grain size distribution after recrystallization is broad. Reasons for the higher growth rates of supercube grains are discussed, and are related to the local deformed microstructure.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14]. However, their formation and development within the as-deformed structures * INSTITUTE OF METALLURGY AND MATERIALS SCIENCE, PAS, 25 REYMONTA STR., 30-059 KRAKÓW, POLAND # Corresponding author: h.paul@imim.pl and their influence on the overall texture evolution are still not completely understood [12][13][14][15][16]. In particular, there is still no agreement on the fundamental problem whether slip within SBs is crystallographic or non-crystallographic, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In metals with a low SFE, brass-type SBs can be readily observed after medium deformations, e.g. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. They develop within the microstructures characterized by thin twin-matrix lamellae.…”

Section: Introductionmentioning

confidence: 99%

Deformation Microstructure And Texture Transformations In FCC Metals Of Medium-To-High Stacking Fault Energy: Critical Role Of Micro- And Macro-Scale Shear Bands

Paul¹,

Miszczyk²

2015

Archives of Metallurgy and Materials

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Microstructure and texture development in medium-to-high stacking fault energy face centred cubic metals were investigated in order to examine the role of lattice re-orientation on slip propagation across grain boundaries and to characterize the influence of micro-and macro-scale copper-type shear bands on textural changes at large deformations. Polycrystalline pure copper (fine -and coarse -grained) and fine-grained AA1050 alloy were deformed in plane strain compression at room temperature to form two sets of well-defined macroscopic shear bands. The deformation-induced sub-structures and local changes in crystallographic orientations were investigated mostly by scanning electron microscopy equipped with high resolution electron backscattered facility. In all the deformed grains within macro-shear bands a strong tendency to strain-induced re-orientation was observed. The flat, strongly deformed grains exhibited a deflection within narrow areas. The latter increased the layers' inclination with respect to ED and led to kink-type bands, which are the precursors of MSBs. The mechanism of macro-/ micro-shear bands formation is strictly crystallographic since in all the areas of the sheared zone, the crystal lattice rotated such that one of the {111} slip planes became nearly parallel to the shear plane and the <011> direction became parallel to the direction of maximum shear. This strain-induced crystal lattice rotation led to the formation of specific macro-/ micro-shear bands components that facilitated slip propagation across the grain boundaries without any visible variation in the slip direction.Keywords: Shear bands, Texture, SEM/EBSD, Copper, AA1050 alloy, Plane strain compression W pracy badano zmiany strukturalne i teksturowe w metalach o sieci regularnej ściennie centrowanej związane z lokalną re--orientacją sieci krystalicznej wynikającą z formowania się mikro-i makro-pasm ścinania. Analizowano polikrystaliczne próbki miedzi oraz aluminium o czystości technicznej (stop AA1050) odkształcane w temperaturze otoczenia w próbie nieswobodnego ściskania do zakresu odkształceń, w których następuje wyraźne uformowanie się dwóch rodzin makroskopowych pasm ścinania. W badaniach wykorzystano skaningowy mikroskop elektronowy wyposażony w system automatycznego pomiaru orientacji lokalnych. Zaobserwowano, że w ziarnach umiejscowionych w obszarze makroskopowych pasm ścinania występuje ściśle zdefiniowana tendencja rotacji sieci krystalicznej, w wyniku której jedna z płaszczyzn typu {111} przyjmuje położenie zbliżone do położenia płaszczyzny ścinania, a jeden z kierunków typu <110> (lub <112> ) wykazuje tendencję do sytuowania się równolegle do kierunku ścinania. Obserwowana w obszarze wnętrza pasm ścinania rotacja prowadzi do uformowania się specyficznej (mikro)tekstury, która umożliwia propagację poślizgów poprzez granice ziaren bez 'istotnej' zmiany kierunku ścinania.

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Inhomogeneity of rolling texture in fcc metals

Cited by 173 publications

References 3 publications

Analysis of through-thickness heterogeneities of microstructure and texture in nickel after accumulative roll bonding

Analysis of through-thickness heterogeneities of microstructure and texture in nickel after accumulative roll bonding

Supercube grains leading to a strong cube texture and a broad grain size distribution after recrystallization

Deformation Microstructure And Texture Transformations In FCC Metals Of Medium-To-High Stacking Fault Energy: Critical Role Of Micro- And Macro-Scale Shear Bands

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