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Showing 1 to 20 of 40 for “"Body Centered Cubic"”.
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Plastic anisotropy of body-centered cubic metals
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Mining and Metallurgy, September 1967.
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Low Temperature Yield Behavior of the Body-Centered Cubic Transition Metals
Made available in DSpace on 2014-12-04T23:11:10Z (GMT). No. of bitstreams: 1 6402860.pdf: 4569761 bytes, checksum: 77fd6443d4dfa67a37bc2d42e54d3f67 (MD5) Previous issue date: 1963
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Low Temperature Specific Heats of Body-Centered Cubic Chromium - Iron Alloys
Made available in DSpace on 2014-12-04T23:26:47Z (GMT). No. of bitstreams: 1 5902063.pdf: 2168225 bytes, checksum: ea31059379bdb809289fd1e419acceb3 (MD5) Previous issue date: 1959
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First Principles-Based Interatomic Potentials for Modeling the Body-Centered Cubic Metals V, Nb, Ta, Mo, and W
… method (MEAM) interatomic potentials for the body-centered cubic (bcc) metals V, Nb, Ta, Mo, and W from data generated by first-principles density-functional theory (DFT) calculations. Comparisons of a wide range of computed materials properties to DFT calculations and experimental data test …
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Mechanical Characterization of Selectively Laser Melted 316L Stainless Steel Body Centered Cubic Unit Cells and Lattice of Varying Node Radii and Strut Angle
… variants of radius and strut angle of the body centered cubic unit cell was performed to determine the mechanical properties and failure mechanisms of the mesostructure. Quasi static compression tests were performed on an Instron® universal testing machine with a 50kN load cell at …
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The diffusion of Co⠶溩 Zrâ â Tiâ â alloy /|nS. Kumar. -- 260 St Catharines [Ont.] : Dept. of Physics, Brock University,
The diffusion of Co60 in the body centered cubic beta phase of a ZrSOTi SO alloy has been studied at 900°, 1200°, and 1440°C. The results confirm earlier unpublished data obtained by Kidson17 • The temperature dependence of the diffusion coefficient is unusual and suggests that at least two and …
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Plasma-assisted deposition of chromium, fluorocarbon and chromium/carbon/fluorine films on glass, polymer and metal substrates
… emission spectroscopy. Fabrication of unique non-body centered cubic (non-BCC) Cr, plasma polymerized fluorocarbon, and optically transparent Cr/C/F thin films were done by non-equilibrium plasma processing.
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Synthesis, X-ray characterization, structural and magnetic studies of a new class of iso-structural BiMO₃ compounds
… part. These compounds all crystallize in the body centered cubic (BCC) structure with a~10.2Å. Single crystal Precession and Weissenberg photographs confirmed the BCC structure. In part three, the results of the magnetic studies on BiCoO₃ and biAl.₉FE.₁ are presented. The magnetic data for …
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Interface-Tracking by the Face-Offsetting Method for Martensitic Transformation Simulations
… special type of martensitic transformation) in a body-centered cubic (BCC) crystal within the Abeyaratne-Knowles continuum thermomechanical framework. Geometric singularities and topological changes associated with microstructural evolution pose significant numerical challenges. We address such …
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A study of the mechanical behavior of particle filled elastomers
… simple two dimensional axisymmetric Voronoi - Body Centered Cubic model, created by Socrate and Boyce [4], to aid in predicting the mechanical behavior of filled elastomers by means of a finite element program, ABAQUS. The effect of filler particles with 10%, 15%, and 20% volume fractions on …
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Shear-induced homogeneous deformation twinning in FCC aluminum and copper via automistic simulation
… shear stress-displacement behavior for face-centered cubic (fcc) metals, aluminum and copper, is calculated using empirical potentials proposed by Mishin and by Ercolessi, based on the embedded atom method (EAM), and compared with published ab initio calculations. In copper close agreement is …
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The effect of high pressure on self-diffusion in beta-titanium
… mechanisms for diffusion in the anomalous body-centered cubic metals. The magnitude of ~V appears to be too large to be consistent with the ""extrinsic"" vacancy mechanism of Kidson, but smaller than would normally be expected for simple vacancy diffusion in bcc metals; It is concluded that …
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Understanding the origins of metastability in thin film growth; tantalum and the early group VB-VIB metals
… mechanism is studied for Ta and the neighboring body centered cubic (bcc) transition metals in Groups 5 and 6 of the Periodic Table, resulting in the prediction of hypothetical body centered tetragonal (bct) and face centered cubic (fcc) phases for all the studied metals at c/a ratios greater …
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Mean-Field Parameter Study of Radiation-Induced Segregation in a Binary Metal Alloy
… designs. A mean-field study is conducted on a body-centered cubic (BCC) A-B binary metal alloy system. The performance of the simulated metal system is measured by assessing the degree of segregation that occurs at the grain boundary (GB) in the center of the one-dimensional simulation box. …
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The Mossbauer effect in iron under very high pressure
… six lines characteristic of ferromagnetic, body-centered cubic iron. The internal magnetic field at the nucleus H decreases linearly with pressure; ~ = -1.6 x 10-4 kilobar-l , o where H is the field at atmospheric pressure. The center of gravity of o the spectrum shifts with pressure …
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Energy Absorption and Dynamic Behaviors of Architectured Interpenetrating Phase Composites
… interpenetrating phase composites comprising a body-centered cubic steel lattice embedded in an aluminum matrix. Through plate impact simulations, we find that the complex mesoscale geometry reduces shock velocity relative to monolithic constituents, slowing and spreading the shock front via …
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Study of the training effect in exchange bias using the domain state model
… different crystallographic structures such as body-centered cubic and hexagonal-close packed, were investigated as in these structures the coupling between the ferromagnet and the antiferromagnet increases. In these structures, in addition to the interface roughness, the enhance coupling is …
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Analysis of hydrodynamic drag forces acting on suspended fine particle in porous media
… compact granular porous media – ordered (simple cubic (SC), body-centered cubic (BCC), face-centered cubic (FCC)) and monodisperse disordered packs are reported and discussed. It is concluded that, overall, the trends of the drag force distribution in the face centered cubic (FCC) pack are the …
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Physically based multiscale-viscoplastic model for metals and steel alloys: theory and computation
… models for different types of metals (body centered cubic, face centered cubic and hexagonal close-packed) and steel alloys are derived in this work for this purpose. We adopt a multi-scale, hierarchical thermodynamic consistent framework to construct the material constitutive relations …
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Design and Synthesis of Polymer Networks and Branched Polymers for Triggered Deconstruction of Self-Assembly
… Notably, we also introduce highly ordered body-centered-cubic morphologies which behave as soft plastic crystals, and lamellar morphologies which behave as robust and transparent, yet unentangled and uncrosslinked thermoplastics.
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