Results 21 to 30 of about 405,384 (300)

Numerical simulation of grain-size effects on creep crack growth by means of grain elements [PDF]

open access: yes, 1998
The effect of grain size on creep crack growth is investigated by means of a numerical technique in which the actual crack growth process is simulated in a discrete manner by grain elements and grain boundary elements.
Giessen, E. van der,, Onck, P.R.,
core   +3 more sources

Effect of serrated grain boundary on stress corrosion cracking of Alloy 600

open access: yesNuclear Engineering and Technology, 2018
The effect of a serrated grain boundary on stress corrosion cracking (SCC) of Alloy 600 was investigated in terms of improvement of SCC resistance. Serrated grain boundaries and straight grain boundaries were obtained by controlled heat treatment.
H.P. Kim   +5 more
doaj   +1 more source

Oxygen vacancy segregation and space-charge effects in grain boundaries of dry and hydrated BaZrO3 [PDF]

open access: yes, 2012
A space-charge model is applied to describe the equilibrium effects of segregation of double-donor oxygen vacancies to grain boundaries in dry and wet acceptor-doped samples of the perovskite oxide BaZrO3.
Adachi M.   +3 more
core   +2 more sources

Grain boundary carbides as hydrogen diffusion barrier in a Fe-Ni alloy: A thermal desorption and modelling study

open access: yesMaterials & Design, 2018
A significant decrease in hydrogen absorption in the presence of grain boundary carbides compared to the carbide-free microstructure in the Ni-based HR6W alloy was measured by thermal desorption analysis (TDA).
Andrej Turk   +5 more
doaj   +1 more source

TEM investigation of YBa2Cu3O7 thin films on SrTiO3 bicrystals [PDF]

open access: yes, 1994
YBa2Cu3O7 films in c-axis orientation on bicrystalline SrTiO3 substrates are investigated by TEM. The films and the substrates are examined in cross-section and in plane view.
Hilgenkamp, H.   +4 more
core   +3 more sources

Interface character distributions in WC/Co cemented carbide

open access: yesCailiao gongcheng
Electron backscatter diffraction, five parameter analysis, overlap-pole-figure analysis and near coincident site analysis were used to investigate the interface character distributions of WC/WC grain boundaries and WC/Co phase boundaries in WC/Co ...
YU Shunshi   +8 more
doaj   +1 more source

Effect of grain boundary on the buckling of graphene nanoribbons

open access: yes, 2012
The buckling of graphene nano-ribbons containing a grain boundary is studied using atomistic simulations where free and supported boundary conditions are invoked.
Neek-Amal, M., Peeters, F. M.
core   +1 more source

Triply-Periodic Smectics [PDF]

open access: yes, 2006
Twist-grain-boundary phases in smectics are the geometrical analogs of the Abrikosov flux lattice in superconductors. At large twist angles, the nonlinear elasticity is important in evaluating their energetics.
Kamien, Randall D.   +1 more
core   +4 more sources

Atomistic Simulation Study of Grain Boundary Segregation and Grain Boundary Migration in Ni-Cr Alloys

open access: yesMetals
Using Molecular Dynamics (MD) and Monte Carlo (MC) simulations, we studied the grain boundary (GB) segregation under different temperatures and Cr concentrations in Ni-Cr alloys with two distinct grain-boundary structures, i.e., Σ5(310)[010] and Σ101(200)
Pengwei Huang   +4 more
doaj   +1 more source

Incommensurate grain-boundary atomic structure

open access: yesNature Communications, 2023
Grain-boundary atomic structures of crystalline materials have long been believed to be commensurate with the crystal periodicity of the adjacent crystals.
Takehito Seki   +5 more
doaj   +1 more source

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