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The influence of lattice misfit on screw and edge dislocation-controlled solid solution strengthening in Mo-Ti alloys
Mo-Ti alloys form solid solutions over a wide range of compositions, with lattice misfit parameters increasing significantly with titanium content....
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Solid Solution Hardening
The size and modulus misfit between solute and parent atoms gives rise to strengthening, solid solution hardening (SSH). With the development of...
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Pinning of dislocations in disordered alloys: effects of dislocation orientation
The current interest in compositionally complex alloys including so called high entropy alloys has caused renewed interest in the general problem of...
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Lattice dislocation induced misfit dislocation evolution in semi-coherent {111} bimetal interfaces
The study of dislocation plasticity mediated by semi-coherent interfaces can aid in the design of certain heterostructured materials, such as...
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In Situ Investigation of TCP Phase Formation, Stress Relaxation and γ/γ′ Lattice Misfit Evolution in Fourth Generation Single Crystal Ni-Base Superalloys by X-Ray High Temperature Diffraction
In nickel-based superalloys, the lattice misfit between the γ and γ ′ phases and the propensity to TCP phase formation at service temperatures...
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Coherent and semicoherent α/β interfaces in titanium: structure, thermodynamics, migration
The α / β interface is central to the microstructure and mechanical properties of titanium alloys. We investigate the structure, thermodynamics and...
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Electronic and Optical Properties of Zigzag BN/AlN Nanoribbons with Misfit Dislocations: First-Principles Calculations
Misfit dislocations (MDs), existing in a broad family of materials, are known to exhibit unique and remarkable properties that are an important...
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Effect of phase interface atomic coherency on dynamics of dislocations
Coarse-grained atomistic simulations are conducted to study the effect of phase interface atomic coherency on the dynamics of dislocations in both...
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Effect of dislocations and impurities on carrier transport in α-Ga2O3 on m-plane sapphire substrate
Carrier transport mechanism in Si-doped n-type α-Ga 2 O 3 thin film on m-plane sapphire substrate was investigated by temperature-dependent Hall effect...
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A multiscale study of misfit dislocations in PbTe/PbSe(001) heteroepitaxy
In this work, we investigate misfit dislocations in PbTe/PbSe heteroepitaxial systems using the concurrent atomistic–continuum (CAC) method. A...
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Defects
Although the term defectsDefects in crystals include point defectsPoint defects (vacancies and interstitials), dislocations stacking faults and grain...
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The effect of interface structures on deformation behavior of Cu/Ni multilayer by molecular dynamics
Molecular dynamics investigated the effect of interface structures on deformation behavior of Cu/Ni multilayer. Interface structures of
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Lattice Misfit Predictions via the Gaussian Process Regression for Ni-Based Single Crystal Superalloys
AbstractNi-based single crystal superalloys exhibit superb mechanical strength, particularly, creep resistance at elevated temperature. The unique...
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Hydrogen trap** and embrittlement of titanium- and vanadium carbide-containing steels after high-temperature hydrogen charging
AbstractThis work studies the effect of TiC and VC precipitate sizes on hydrogen trap** and embrittlement. Two experimental ferritic HSLA steels...
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Screw vs. edge dislocation strengthening in body-centered-cubic high entropy alloys and implications for guided alloy design
Body-centered-cubic (BCC) high entropy alloys (HEAs) can show exceptionally high strength up to high temperatures. Mechanistic theories are needed to...
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Effect of Pre-Deformation on Precipitation in Al–Zn–Mg–Cu Alloy
In this work, strengthening effects and evolution of precipitates in a pre-deformed Al–Zn–Mg–Cu alloy during ageing were investigated using Vickers...
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Multi-scale modeling of solute atom strengthening using 3D discrete dislocation dynamics
Discrete dislocation dynamics (DDD) codes enable researchers and scientists to explore the mechanical behavior of a material as impacted by its...
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Descriptions of Dislocation via First Principles Calculations
Dislocation is one of the most representative plastons to determine the mechanical properties of crystalline materials. In this section, several...