Search Results - "Venkert, A."
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1
Dynamic recrystallization as a potential cause for adiabatic shear failure
Published in Physical review letters (17-10-2008)“…Dynamic recrystallization (DRX) is almost universally observed in the microstructure of adiabatic shear bands. It is usually admitted that DRX results from the…”
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2
Reassessment of the Dynamic Thermomechanical Conversion in Metals
Published in Physical review letters (20-12-2019)“…Heat dissipation still remains an unsolved problem in dynamic plasticity, where nearly adiabatic conditions prevail during high-rate loading scenarios. It is…”
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3
Microstructural effects on adiabatic shear band formation
Published in Scripta materialia (01-01-2012)“…Dynamic recrystallization (DRX), driven by the dynamic stored energy of cold work, promotes shear localization. However, the influence of twinning remains to…”
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4
The genesis of adiabatic shear bands
Published in Scientific reports (16-11-2016)“…Adiabatic shear banding (ASB) is a unique dynamic failure mechanism that results in an unpredicted catastrophic failure due to a concentrated shear deformation…”
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5
The respective influence of microstructural and thermal softening on adiabatic shear localization
Published in Mechanics of materials (01-01-2013)“…It has recently been shown that dynamic shear failure of crystalline solids can be initiated by local microstructural changes (dynamic recrystallization, DRX),…”
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6
Microstructure and phase selection in supercooled copper alloys exhibiting metastable liquid miscibility gaps
Published in Journal of materials science (01-12-2012)“…The influence of both bulk supercooling and cooling rate on the microstructure and phase selection during solidification of Cu–Co, Cu–Co–Fe, and Cu–Nb alloys…”
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7
On the dynamically stored energy of cold work in pure single crystal and polycrystalline copper
Published in Acta materialia (01-05-2012)“…The thermo-mechanical response of single crystal and polycrystalline high purity copper is systematically compared at low and high strain rates. The mechanical…”
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8
The mechanical response of pure iron at high strain rates under dominant shear
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (25-09-2006)“…The mechanical behavior and microstructure of pure iron subjected to dominant shear loading has been characterized over a wide range of strain rates. Pure iron…”
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9
On the dynamic character of localized failure
Published in Scripta materialia (01-10-2012)“…The dynamic stored energy of cold work (SECW) has recently been identified as the trigger for adiabatic shear failure. However, the question of what makes the…”
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10
Universal strain–temperature dependence of dislocation structures at the nanoscale
Published in Scripta materialia (01-02-2012)“…The universal topology of experimental strain–temperature maps of dislocation structures of face-centered cubic metals allows the ordering of dislocation…”
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11
Universal strain–temperature dependence of dislocation structure evolution in face-centered-cubic metals
Published in Acta materialia (01-08-2011)“…The combined effect of strain and temperature on the microstructural evolution of plastically deformed face-centered-cubic (fcc) metals is explored…”
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12
Phase selection in supercooled Cu–Nb alloys
Published in Journal of materials science (2009)“…Electromagnetic levitation was used to determine Cu–Nb phase diagram and to study supercooling effects on solidification characteristics of the alloys…”
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13
Observation of a metastable aluminide ThFe2Al10
Published in Intermetallics (01-05-2013)“…Metastable ThFe2Al10 ternary aluminide was observed in the as-cast Al-6.1at.%Th-6.1at.%Fe alloy. It crystallizes into an orthorhombic structure belonging to…”
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14
Microstructural Aspects of Adiabatic Shear Failure in Annealed Ti6Al4V
Published in Metallurgical and materials transactions. A, Physical metallurgy and materials science (01-02-2010)“…This work reports a comprehensive examination of the microstructural evolution in Ti6Al4V subjected to high-strain-rate deformation. The sequence of…”
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15
The structure of a new ternary aluminide Th4Fe3Al32
Published in Journal of alloys and compounds (17-04-2009)“…The atomic structure of a new ternary Th4Fe3Al32 phase appearing in the alloy with composition Al-5 at.%Th-2.5 at.% Fe was solved using electron…”
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16
Microstructure evolution in deformed copper
Published in Journal of materials science (01-12-2007)“…The effects of strain and temperature on the microstructure and the detailed structure of dislocation walls in compressed pure polycrystalline copper were…”
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17
The structure of the ternary aluminide ThFe2Al10
Published in Intermetallics (01-07-2005)“…A new ternary aluminide containing actinide, ThFe2Al10, was observed in the Al-8 at. %Th-16 at.%Fe alloy. Microstructural study has shown that grains of the…”
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18
Microstructural study of Ce–Nd alloys
Published in Journal of alloys and compounds (01-01-2007)“…The present work is concerned with the grain structure and grain growth in some cerium–neodymium alloys. The grain size in a Ce–10 wt.% Nd alloy is determined…”
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19
Site related nucleation and growth of hydrides on uranium surfaces
Published in Journal of alloys and compounds (01-11-1996)“…The characteristics of hydride nucleation and growth on certain surfaces of pure uranium and of U-0.1 wt.% Cr samples were studied (under I atm H, at…”
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20
Microstructure characterization of ceramic composites formed by controlled melt oxidation of Al-Mg-Pd alloys
Published in Journal of materials science (15-07-2001)“…Ceramic matrix composites were produced by controlled melt oxidation of Al98 − xMg2Pdx alloys. The Pd element was chosen as an additive due to its influence on…”
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