Mechanisms of hydrogen-enhanced localized plasticity: An atomistic study using alpha-Fe as a model system
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Microstructural analysis and mechanical testing have been performed on two types of nanocrystalline (NC) Ni samples and compared to coarse-grained (CG) Ni. The NC electrodeposited (ED) Ni is characterized by a mean grain size of 21 nm, a narrow grain size ...
Dislocation velocities and mobilities are studied using molecular dynamics simulations for edge and screw dislocations in pure aluminium and nickel, and edge dislocations in Al-2.5%Mg and Al-5.0%Mg random substitutional alloys using EAM potentials. In the ...
The phenomenon of 2D nanoindentation of circular "Brinell" indenter into a single crystal metal thin film bonded to a rigid substrate is investigated. The simulation method is the coupled atomistics and discrete dislocation (CADD) model recently developed ...
Transient creep (1) tests have been performed at the yield point of icosahedral AlCuFe poly-quasicrystalline specimens in order to investigate the actual causes of this phenomenon. The experimental results strongly suggest that the yield point occurrence i ...
A new procedure of X-ray line profile analysis based on the dislocation model of strain anisotropy has been applied. The dislocation densities and the subgrain size-distributions in a MANET steel are investigated in the normal condition and after cyclic de ...
