Cuilan Ren
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View article: First–principles study on embrittlement behavior of gadolinium-doped nickel grain boundaries
First–principles study on embrittlement behavior of gadolinium-doped nickel grain boundaries Open
Understanding the microstructure and mechanical properties of gadolinium (Gd) doped nickel grain boundaries (GBs) is essential to enhance the service performance of structural materials. The structural stability and mechanical properties o…
View article: An atomic-scale investigation of structural transitions in ruthenium induced by x-ray free-electron lasers
An atomic-scale investigation of structural transitions in ruthenium induced by x-ray free-electron lasers Open
The surface thermodynamic properties of ruthenium (Ru) targets were systematically investigated under different laser energy fluences to elucidate the irradiation damage mechanisms of the grazing incidence mirror in x-ray free-electron las…
View article: Development of a space-compatible packaging system for an integrated monolithic ultra-stable optical reference
Development of a space-compatible packaging system for an integrated monolithic ultra-stable optical reference Open
We report the development of a space-compatible packaging system for an integrated monolithic ultra-stable optical reference toward China’s next-generation geodesy mission with low orbit satellite-to-satellite tracking. Building on our pre…
View article: Review on microstructure and properties of joints welded by using high-energy beam
Review on microstructure and properties of joints welded by using high-energy beam Open
Due to the advantages of small deformation, high energy density and welding efficiency, the high-energy beam welding technology has played an important role in aerospace, rail transportation and other advanced manufacturing fields. The exi…
View article: Surface properties of non-passivated nickel-based alloys in H2O-bearing environments by theoretical calculations: Atomic modification effects from alloying additions
Surface properties of non-passivated nickel-based alloys in H2O-bearing environments by theoretical calculations: Atomic modification effects from alloying additions Open
The surface properties of nickel-based alloys with different alloying compositions against aggressively corrosive species were systematically evaluated by using the segregated and non-segregated models designed through first-principles cal…
View article: Neutron shielding analysis for a gadolinium doped nickel alloy
Neutron shielding analysis for a gadolinium doped nickel alloy Open
Rare-earth-nickel (RE-Ni) alloy is a kind of appealing neutron shielding material for advanced reactors and spent fuel storage containers. The incorporation of neutron-absorbing additive RE elements results in a RE-Ni alloy with integrated…
View article: Growth mechanism of carbon nanotubes from Co-W-C alloy catalyst revealed by atmospheric environmental transmission electron microscopy
Growth mechanism of carbon nanotubes from Co-W-C alloy catalyst revealed by atmospheric environmental transmission electron microscopy Open
High–melting point alloy catalysts have been reported to be effective for the structure-controlled growth of single-wall carbon nanotubes (SWCNTs). However, some fundamental issues remain unclear because of the complex catalytic growth env…
View article: Resonance contribution to electron-impact excitation rate coefficients of helium-like S<sup>14+</sup> ions
Resonance contribution to electron-impact excitation rate coefficients of helium-like S<sup>14+</sup> ions Open
Synopsis Electron-impact excitation rate coefficients of S 14+ ions have been studied by using a relativistic flexible atomic code that can account systematically for configuration interactions. Moreover, we also considered the resonance e…
View article: Analysis of high temperature fatigue lifetime of GH4133B superalloy used in turbine disk of aero-engine
Analysis of high temperature fatigue lifetime of GH4133B superalloy used in turbine disk of aero-engine Open
Based on the S-H cavity model theory and the thermodynamic diffusion equation, the high temperature fatigue lifetime equation is deduced, and the influence of stress amplitude and mean stress on fatigue lifetime is quantitatively analyzed.…
View article: Detection and analysis of high temperature fatigue fracture surface oxygen diffusion of GH4133B superalloy used in turbine disk of aero-engine
Detection and analysis of high temperature fatigue fracture surface oxygen diffusion of GH4133B superalloy used in turbine disk of aero-engine Open
The chemical contents on the fatigue fracture surface of GH4133B superalloy piece suffering tension-tension fatigue and operated at high temperature 600 ºC is analyzed using an energy dispersive spectrometer, and the element content percen…
View article: Effect of stop-hole-induced material removal on the fatigue properties of cracked DT4C steel
Effect of stop-hole-induced material removal on the fatigue properties of cracked DT4C steel Open
There is a lack of a quantitative study on the appropriate value of material removal Lr from the crack-tip front induced by drilling a stop-hole.The effect of Lr variation on the fatigue life and post-initiation fatigue crack growth rate (…
View article: Influence of Breit interaction on the linear polarization of radiation following electron impact excitation of B-like ions
Influence of Breit interaction on the linear polarization of radiation following electron impact excitation of B-like ions Open
The influences of Breit interaction on the total cross section and linear polarization of highly charged Ca15+, Xe49+, and W69+ ions in the electron impact excitation process are calculated by fully relativistic distorted-wave program REIE…
View article: Pressure-induced structural transformations and polymerization in ThC2
Pressure-induced structural transformations and polymerization in ThC2 Open
Thorium-carbon systems have been thought as promising nuclear fuel for Generation IV reactors which require high-burnup and safe nuclear fuel. Existing knowledge on thorium carbides under extreme condition remains insufficient and some is …
View article: First-Principles Study of Vacancies in Ti3SiC2 and Ti3AlC2
First-Principles Study of Vacancies in Ti3SiC2 and Ti3AlC2 Open
MAX phase materials have attracted increased attention due to their unique combination of ceramic and metallic properties. In this study, the properties of vacancies in Ti3AlC2 and Ti3SiC2, which are two of the most widely studied MAX phas…
View article: Theoretical study of the substitutional solute effect on the interstitial carbon in nickel-based alloy
Theoretical study of the substitutional solute effect on the interstitial carbon in nickel-based alloy Open
The carbon binding in nickel-based alloy with 3d, 4d and 5d transition metal solutes are investigated by using first-principles methods.
View article: Atomistic simulations of the interactions of helium with dislocations in nickel
Atomistic simulations of the interactions of helium with dislocations in nickel Open
The interactions of He with four dislocation types in face-centered-cubic (fcc) Ni are investigated by molecular dynamics simulations using an embedded-atom method (EAM) model. The binding energies of He in and near the cores of different …