Hydrogen-enhanced plasticity at dilute bulk H concentrations: The role of H-H interactions and the formation of local hydrides

@inproceedings{Pezold2011HydrogenenhancedPA,
  title={Hydrogen-enhanced plasticity at dilute bulk H concentrations: The role of H-H interactions and the formation of local hydrides},
  author={Johann von Pezold and Liverios Lymperakis and J{\"o}rg Neugebauer},
  year={2011}
}
Abstract The effect of H on the stress-mediated dislocation–dislocation interaction in face-centered cubic metals is studied by a hierarchical approach combining ab initio electronic structure calculations, semi-empirical embedded atom method potentials and a lattice-gas Hamiltonian, using the NiH system as a model system. The H distribution around edge dislocations is found to depend critically on H–H interactions within the metal matrix. In the absence of these interactions a dilute H… CONTINUE READING

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