Deformation Twinning and Detwinning in Face‐Centered Cubic Metallic Materials
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DOI: 10.1002/adem.201900479
Abstract: Deformation twinning and detwinning are widely observed in face‐centered cubic (FCC) metallic materials processed by severe plastic deformation. Several twinning and detwinning mechanisms are reported in coarse‐grained and nanocrystalline materials. In this article, the mechanisms… read more here.
Keywords: twinning detwinning; metallic materials; face centered; deformation twinning ... See more keywords
Direct Observation of Oxygen Atoms Taking Tetrahedral Interstitial Sites in Medium‐Entropy Body‐Centered‐Cubic Solutions
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202209941
Abstract: Interstitial solutes, such as carbon in steels, are effective solid‐solution hardening agents. These alloying elements are believed to occupy the octahedral interstices in body‐centered‐cubic (bcc) metals. Using deep‐sub‐angstrom‐resolution electron ptychography, here the first experimental evidence… read more here.
Keywords: medium entropy; body centered; interstitial sites; centered cubic ... See more keywords
One‐Step Syntheses of Face‐Centered Cubic OsxPt1‐x/C with Near‐Zero‐Overpotential Hydrogen Evolution from Electronic‐State Engineering
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DOI: 10.1002/advs.202504161
Abstract: The loading states and crystal structure control of solid solution catalysts, which greatly influence the catalytic performance, have not yet been achieved simultaneously due to the limitations of previous synthetic methodologies. In this work, a… read more here.
Keywords: face centered; centered cubic; hydrogen evolution; electronic state ... See more keywords
Synthesis, Alloying Process, and Enhanced Oxygen Evolution Activity of Highly Stable Ni-Fe-Mo Nanoparticles with a Face-Centered Cubic Phase.
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DOI: 10.1002/smll.202505716
Abstract: Real-time visualization of alloying evolution is crucial yet challenging for designing and synthesizing face-centered cubic (fcc) nanoalloy catalysts for the alkaline oxygen evolution reaction (OER). Here, a trimetallic fcc NiFeMo nanoalloy is synthesized via topological… read more here.
Keywords: evolution; face centered; centered cubic; nifemo nanoalloy ... See more keywords
Temperature-affected microstructural stability of coherent cuboidal B2 particles in precipitation-strengthened body-centered-cubic Al0.7CoCr2FeNi high-entropy alloy
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Science"
DOI: 10.1007/s10853-019-03459-y
Abstract: This present work investigated the temperature-affected microstructural stability of coherent cuboidal B2 nanoprecipitates in the body-centered-cubic (BCC)-based Al0.7CoCr2FeNi high-entropy alloy with temperature. Alloy specimens were prepared by suction-cast processing and then heat-treated at different temperatures… read more here.
Keywords: alloy; temperature; centered cubic; affected microstructural ... See more keywords
Prediction of a wide variety of linear complexions in face centered cubic alloys
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.11.069
Abstract: Abstract Linear complexions are defect states that have been recently discovered along dislocations in body centered cubic Fe-based alloys. In this work, we use atomistic simulations to extend this concept and explore segregation-driven structural transitions… read more here.
Keywords: face centered; variety; cubic alloys; centered cubic ... See more keywords
Theoretical investigation of the 70.5° mixed dislocations in body-centered cubic transition metals
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DOI: 10.1016/j.actamat.2021.117154
Abstract: Abstract The low-temperature plasticity of body-centered cubic (bcc) metals is governed by 1 2 〈 111 〉 screw dislocations due to their compact, non-planar core. It has been proposed that 70.5 ∘ mixed (M111) dislocations… read more here.
Keywords: theoretical investigation; body centered; transition metals; centered cubic ... See more keywords
A unified dislocation-based model for ultrafine- and fine-grained face-centered cubic and body-centered cubic metals
Sign Up to like & getrecommendations! Published in 2017 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2017.01.022
Abstract: Abstract A unified dislocation-based model is proposed in the present work to quantitatively predict the stress-strain behavior of various face-centered cubic (FCC) and body-centered cubic (BCC) metals with grain sizes ranging from submicron to microns.… read more here.
Keywords: dislocation based; centered cubic; unified dislocation; model ... See more keywords
Configurational thermodynamics of C in body-centered cubic/tetragonal Fe : A combined computational study
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DOI: 10.1016/j.commatsci.2018.02.024
Abstract: Abstract Configurational thermodynamics of C in body-centered cubic (bcc) or tetragonal (bct) Fe is investigated combining several computational techniques. Pairwise C C interaction energies in bcc Fe are calculated by density functional theory (DFT) and… read more here.
Keywords: thermodynamics; centered cubic; configurational thermodynamics; thermodynamics body ... See more keywords
Effects of temperature on surface-controlled dislocation multiplication in body-centered-cubic metal nanowires
Sign Up to like & getrecommendations! Published in 2019 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.05.063
Abstract: Abstract Recent computational studies revealed that screw dislocations in body-centered-cubic (bcc) metal nanowires can self-multiply through cross-slip near the free surface. This unique process was termed surface-controlled dislocation multiplication (SCDM). In bcc metals, screw dislocation… read more here.
Keywords: metal nanowires; surface; dislocation; body centered ... See more keywords
General yield behaviors of the {1 1 0} hexagonal dislocation networks in body centered cubic metal molybdenum
Sign Up to like & getrecommendations! Published in 2019 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.109116
Abstract: Abstract The {110} hexagonal dislocation networks (HDNs) act as important carriers of the low-temperature plastic deformation in the body-centered-cubic (BCC) metals. Erenow, only a handful of studies have been performed on the yield behaviors of… read more here.
Keywords: hexagonal dislocation; body centered; centered cubic; dislocation networks ... See more keywords