Abstract
The deleterious effects of hydrogen on the tensile properties of metals are caused by the association and movement of hydrogen with dislocations. Hydrogen-dislocation interactions modify plastic deformation processes by stabilizing microcracks, by changing the work hardening rate, and by solid solution hardening. The extent to which such modifications cause embrittlement depends on the properties and defect structure of the uncharged alloy as well as on hydrogen-induced changes in deformation processes.
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