On Penetration of Shear Texture into the Rolled Aluminum and Copper

Truszkowski, W.; Król, J.; Major, B.

doi:10.1007/bf02644432

Cited by 93 publications

(57 citation statements)

References 4 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: 57%

“…2c) that is considered to be the major component of the shear texture [22,23,26]. It is therefore apparent that the lubrication used in the present experiment reduced the shear strain component so that the accumulated shear was not high enough to produce a strong {001}<110> component in the subsurface of our sample, though it was sufficiently high to rotate orientations in a large sample volume close to this component.…”

Section: Texture Gradientsmentioning

confidence: 73%

“…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: 57%

Section: Texture Gradientsmentioning

confidence: 73%

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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“…[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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Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

et al. 2018

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The paper aims to summarize the research on Laminar Metal Composites produced by Accumulative Roll Bonding. After some notes on the general subject, frequent material combinations and the issue of bonding are addressed. Then, the evolution of microstructure, texture, and mechanical properties typically observed in such materials is briefly summarized. Furthermore, the crucial aspect of layer continuity is discussed. In the main part, detailed experimental insight is provided for three representatives of different structural developments, namely Al2N/Al5N, Cu/Nb, and Ti/Al. The chosen systems represent different levels of component dissimilarity, as Al2N/Al5N is a combination of the same face centered cubic metal with varying purity while Cu/Nb and Ti/Al are combinations of face centered cubic with both body centered cubic and hexagonal close packed metals, respectively. As the layer thicknesses span different ranges, the composites also illustrate both the opportunities and experimental challenges of ARB Laminar Metal Composites.bonding (in the following, those processes will be referred to "ARB"), often supplemented by annealing and rolling steps. Naturally, a high percentage of the scientific attention regarding LMCs is bestowed on Al alloys, for example, [7,25,[43][44][45][46][47][48][49][50] whose assets are excellent formability and corrosion resistance while being low in both weight and price.Al alloys are frequently combined in order to improve specific properties, for example, [51][52][53][54][55] A strong but corrosion susceptible Al alloy of series 2xxx, for example, benefits from the combination with a less strong but corrosion resistant alloy of series 6xxx. [50] Likewise, in LMCs of series 5xxx and 6xxx, both surface quality and weldability are improved due to the reduction of the PLC-effect [53] and hot cracking, [55] respectively.By combining Al with both Fe [56][57][58] or Cu, [45,59] the magnetic properties of the former and the electrical properties of the latter can be used to produce LMCs with potential in microelectronics and in electrical power industry, [60] respectively. Other components in LMCs with Cu are Ag, [61] Zn, [62] both Zn and Al, [63] and both Al and Ni. [64] Nb receives major scientific attention due to its superconducting properties, which work especially well in a finelayered structure with Cu or Al, [65] which are chosen for their low solubility in Nb and the absence of mutual intermetallics. In contrast, other LMCs are produced especially for intermetallic transition, for instance Al/Fe, [57,58,66] Al/Mg, [43,44] Al/Ti, [67][68][69][70][71] Al/Ni, [72,73] Ti/Nb, [74] or Ti/Al/Nb. [74] When high specific strength in combination with sufficient formability and ductility is the foremost requirement, Al is often combined with high-strength partners such as steel, for example, [66,75] Mg, for example, [46,76,49] Ti, for example, [67][68][69]74,[77][78][79][80][81][82][83][84][85][86] as well as both Mg and Ti. [87] Furthermore, Ti is paired with Fe, [88,89] Cu, for example, [90,...

show abstract

On Penetration of Shear Texture into the Rolled Aluminum and Copper

Cited by 93 publications

References 4 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

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

Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

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