The Paton Welding Journal, 2007, №02

2007 №02 (04)

2007 №02 (06)

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The Paton Welding Journal, 2007, #2, 24-26 pages

Model of transportation of hydrogen with dislocations

V.I. Shvachko, A.V. Ignatenko

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
The model is suggested to describe the transportation of hydrogen atoms with edge dislocations, accounting for interaction of a hydrogen atom with edge dislocation and crystalline lattice of iron, as well as interaction of hydrogen atoms between each other. This allows the amount of transported hydrogen to be calculated depending upon the temperature of metal, velocity of an edge dislocation and concentration of free hydrogen. As shown by the numerical calculations, the trans¬portation of hydrogen with an edge dislocation has maximum at a temperature close to the normal one.
Keywords: reversible hydrogen brittleness, transportation of hydrogen, edge dislocations, plastic flow, temperature de¬pendence, strain rate

References

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Suggested Citation

V.I. Shvachko, A.V. Ignatenko (2007) Model of transportation of hydrogen with dislocations. The Paton Welding J., 02, 24-26.

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