Digital Repository, ICF12, Ottawa 2009

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Atomistic study of hydrogen distributions around lattice defects and defect energies under hydrogen environment
R. Matsumoto, S. Taketomi, N. Miyazaki

Last modified: 2013-05-07


It is well known that hydrogen atoms and lattice defects have strong interactions
and mechanical properties of metals are significantly changed under hydrogen
environment. It has been reported that hydrogen stabilizes vacancies [1, 2], and
changes the mobility of dislocations [3-5]. Furthermore, the hydrogen distribution
is strongly influenced by the stress fields [3-6]. In order to advance our
understanding about hydrogen related fractures of metals, it is essentially
important to reveal the hydrogen distributions around various lattice defects and
the hydrogen effects on defect-formation and defect-motion.

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