Twin nucleation from a single dislocation in hexagonal close-packed crystals
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.10.038
Abstract: Abstract Twinning plays an important role in governing the balance between strength and ductility in hexagonal-close-packed (HCP) metals. Here, we report a combined experimental and theoretical study of twin nucleation from a single dislocation in… read more here.
Keywords: hexagonal close; dislocation; nucleation; close packed ... See more keywords
Applied machine learning to predict stress hotspots II: Hexagonal close packed materials
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2018.08.003
Abstract: Stress hotspots are regions of stress concentrations that form under deformation in polycrystalline materials. We use a machine learning approach to study the effect of preferred slip systems and microstructural features that reflect local crystallography,… read more here.
Keywords: stress; close packed; machine learning; hexagonal close ... See more keywords
A single-phase ScTiZrHf high-entropy alloy with thermally stable hexagonal close-packed structure
Sign Up to like & getrecommendations! Published in 2020 at "Intermetallics"
DOI: 10.1016/j.intermet.2020.106802
Abstract: Abstract High-entropy alloys forming non-cubic crystal structures are intriguing systems for both scientific and functional viewpoints. Hexagonal-structured HEAs are among them. In this work, we have fabricated a single-phase hexagonal close-packed phase in ScTiZrHf system.… read more here.
Keywords: phase; alloy; hexagonal close; high entropy ... See more keywords
A novel strategy to strengthen the hexagonal close-packed (HCP) alloys
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.162346
Abstract: Abstract This work proposes a novel strengthening strategy for HCP alloy by fully utilizing the strengthening roles from texture and dual-precipitates in both basal and prismatic planes. The binary Mg-7Al (at%) alloy fabricated by such… read more here.
Keywords: hexagonal close; hcp alloys; strategy; novel strategy ... See more keywords
Void growth and coalescence in hexagonal close packed crystals
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2018.12.012
Abstract: Abstract Crystal plasticity finite element analyses are carried out in three dimensions to investigate void evolution in hexagonal close packed single crystals. Two crystallographic orientations are considered favoring either slip or twinning, which are both… read more here.
Keywords: close packed; void growth; growth coalescence; hexagonal close ... See more keywords
Large-Area Monolayer Films of Hexagonal Close-Packed Au@Ag Nanoparticles as Substrates for SERS-Based Quantitative Determination.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c23638
Abstract: In this work, quasi-spherical, small-sized, citrate-stabilized, core-shell (CS)-structured Au5.5@Agm nanoparticles (NPs) with Ag shells of controlled thicknesses (m = 0, 1.25, 3.25, and 5.25) were successfully synthesized by using Au NPs with sizes of 5.5… read more here.
Keywords: hexagonal close; area monolayer; monolayer films; lamf hcp ... See more keywords
Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-16351-0
Abstract: Design and processing of advanced lightweight structural alloys based on magnesium and titanium rely critically on a control over twinning that remains elusive to date and is dependent on an explicit understanding on the twinning… read more here.
Keywords: hexagonal close; twinning nucleation; close packed; step twinning ... See more keywords
Hexagonal Close-packed Iron Hydride behind the Conventional Phase Diagram
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-48817-7
Abstract: Hexagonal close-packed iron hydride, hcp FeH x , is absent from the conventional phase diagram of the Fe–H system, although hcp metallic Fe exists stably over extensive temperature (T) and pressure (P) conditions, including those… read more here.
Keywords: hydride; iron hydride; hexagonal close; close packed ... See more keywords
Topological signatures and stability of hexagonal close packing and Barlow stackings.
Sign Up to like & getrecommendations! Published in 2021 at "Soft matter"
DOI: 10.1039/d1sm00774b
Abstract: Two common representations of close packings of identical spheres consisting of hexagonal layers, called Barlow stackings, appear abundantly in minerals and metals. These motifs, however, occupy an identical portion of space and bear identical first-order… read more here.
Keywords: hexagonal close; barlow stackings; stability hexagonal; signatures stability ... See more keywords
Density Functional Theory Description of Paramagnetic Hexagonal Close-Packed Iron
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15041276
Abstract: The hexagonal close-packed (hcp) phase of iron is unstable under ambient conditions. The limited amount of existing experimental data for this system has been obtained by extrapolating the parameters of hcp Fe–Mn alloys to pure… read more here.
Keywords: theory; hexagonal close; close packed; functional theory ... See more keywords
Mathematical Models and Experiments on the Acoustic Properties of Granular Packing Structures (Measurement of Tortuosity in Hexagonal Close-Packed and Face-Centered Cubic Lattices)
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15207393
Abstract: In this study, the sound absorption characteristics of hexagonal close-packed and face-centered cubic lattices were estimated by theoretical analysis. Propagation constants and characteristic impedances were obtained by dividing each structure into elements perpendicular to the… read more here.
Keywords: hexagonal close; tortuosity; packed face; close packed ... See more keywords