Compression-Induced Polycrystal-Glass Transition in Binary Crystals
Physical Review X, 2018 A polycrystal will transform into a glass when its grain size is sufficiently reduced. However, it is not clear how the polycrystal-glass boundary can be identified, whether the boundary is a sharp point or a crossover regime, and what features exist at ...
Huijun Zhang, Yilong Han
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Study of the Thermomechanical Behavior of Single-Crystal and Polycrystal Copper
MetalsThis research paper presents an experimental, theoretical, and numerical study of the thermomechanical behavior of single-crystal and polycrystal copper under uniaxial stress compression loading at varying rates of deformation.
Sudip Kunda +7 more
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High-Rate Crystal/Polycrystal Dislocation Dynamics
Crystals, 2022 The present report builds upon work recently published on crystal and polycrystal dislocation mechanics behaviors assessed, in part, in split-Hopkinson pressure bar (SHPB) and shock loading investigations.
Ronald W. Armstrong
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The Effect of Novolac and Graphite Polycrystal on the Acetone Penetration and Thermal Resistance of Nanocomposites Based on Nitrile Rubber [PDF]
علوم و تکنولوژی پلیمر, 2015 Developments of high diffusive environments in coincidence with emerging fluids with strong ability to destroy polymeric systems have resulted in rapid deformation and destruction of polymeric parts when in contact with such aggressive environments ...
Rasool Mahboudi +2 more
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Metals, 2017 Based on the strain rates of 2 × 108 s−1 and 2 × 1010 s−1, molecular dynamics simulation was conducted so as to study mechanisms of crack propagation in nanoscale polycrystal nickel.
Yanqiu Zhang, Shuyong Jiang
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The Dislocation Mechanics of Crystal/Polycrystal Plasticity
Crystals, 2022 A brief history and update are given in four examples demonstrating that polycrystals are generally stronger than their individual component crystal grains because of obstructed dislocation pile-ups at grain boundaries.
Ronald W. Armstrong
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Experimental and Computational Approach to Fatigue Behavior of Polycrystalline Tantalum
Metals, 2021 This work provides an experimental and computational analysis of low cycle fatigue of a tantalum polycrystalline aggregate. The experimental results include strain field and lattice rotation field measurements at the free surface of a tension–compression
Damien Colas +5 more
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Micro-mechanical modelling of high cycle fatigue behaviour of metals under multiaxial loads [PDF]
, 2012 An analysis of high cycle multiaxial fatigue behaviour is conducted through the numerical simulation of polycrystalline aggregates using the finite elementmethod.
PALIN-LUC, Thierry +3 more
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Deformation and dislocation evolution in body-centered-cubic single- and polycrystal tantalum [PDF]
, 2021 A physically-informed continuum crystal plasticity model is presented to elucidate the deformation mechanisms and dislocation evolution in body-centered-cubic (bcc) tantalum widely used as a key structural material for mechanical and thermal extremes. We
Pokharel, Reeju +9 more
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The Internal Friction of Single Crystals, Bicrystals and Polycrystals of Pure Magnesium
Archives of Metallurgy and Materials, 2015 The internal friction of magnesium single crystals, bicrystals and polycrystals has been studied between room temperature and 450°C. There is no internal friction peak in the single crystals, but a prominent relaxation peak appears at around 160°C in ...
Jiang W.B. +3 more
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