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
Body-Centered Tetragonal C16 : A Novel Topological Node-Line Semimetallic Carbon Composed of Tetrarings.
Sign Up to like & getrecommendations! Published in 2017 at "Small"
DOI: 10.1002/smll.201602894
Abstract: The present work not only predicts the existence of 3D topological semimetallic carbon allotropes composed of tetrarings, but also provides a likely crystalline structure for the unknown phase produced in the detonation soot. read more here.
Keywords: tetragonal c16; semimetallic carbon; centered tetragonal; body centered ... See more keywords
Theoretical investigation of the 70.5° mixed dislocations in body-centered cubic transition metals
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
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
Configurational thermodynamics of C in body-centered cubic/tetragonal Fe : A combined computational study
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
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
Coupled texture and non-Schmid effects on yield surfaces of body-centered cubic polycrystals predicted by a crystal plasticity finite element approach
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2017.01.003
Abstract: Abstract Understanding and modeling the plastic deformation of body-centered cubic (BCC) metals involves considering non-Schmid (NS) driving forces to move dislocations. Here, the deformation of individual single crystals results not only from the resolved shear… read more here.
Keywords: finite element; centered cubic; texture; non schmid ... See more keywords
Combinatorial synthesis of high entropy alloys: Introduction of a novel, single phase, body-centered-cubic FeMnCoCrAl solid solution
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2016.08.326
Abstract: Abstract We introduce a novel, FeMnCoCrAl high entropy alloy synthesized by combinatorial sputtering and casting. The synthesized thin film library, exhibiting multiple concentration gradients, is characterized using X-ray diffraction, transmission Kikuchi diffraction and atom probe… read more here.
Keywords: phase; phase body; high entropy; single phase ... See more keywords
Body-centered cubic high-entropy alloys: From processing to underlying deformation mechanisms
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DOI: 10.1016/j.matchar.2018.07.015
Abstract: Abstract In 14 years, high entropy alloys (HEAs) have been among the most studied materials in the metallurgical field. The concept is attractive and offers the possibility to explore new materials and to revisit the basic… read more here.
Keywords: body centered; underlying deformation; centered cubic; entropy alloys ... See more keywords
Body-centered-cubic to face-centered-cubic phase transformation of iron under compressive loading along [100] direction
Sign Up to like & getrecommendations! Published in 2021 at "Materials today communications"
DOI: 10.1016/j.mtcomm.2020.101961
Abstract: Abstract Phase transformation of iron nanoplate and bulk under compressive loading along [100] direction is investigated by using the molecular dynamic simulation method. The simulation results show that the iron nanoplate undergoes body-centered-cubic to face-centered-cubic… read more here.
Keywords: face centered; centered cubic; phase transformation; body centered ... See more keywords
An atomistic investigation of dislocation velocity in body-centered cubic FeCrAl alloys
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DOI: 10.1016/j.mtla.2021.101165
Abstract: Abstract Edge, screw, and mixed dislocation velocities in FeCrAl body-centered cubic alloy were investigated by classical molecular dynamics simulation at several temperatures for the 〈111〉{110} type slip system. For screw orientation, the dislocation velocity as… read more here.
Keywords: velocity; centered cubic; stress; dislocation velocity ... See more keywords