Hydrogen - dislocation interactions

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12 Citations (Scopus)

Abstract

The effect of hydrogen on dislocation-dislocation and dislocation-impurity atom interactions is studied under conditions where hydrogen is in equilibrium with local stresses and in systems where hydrogen increases the shear modulus. In the case of two edge dislocations, the effect of hydrogen is modeled by a continuous distribution of dilatation lines with strength that depends on the local hydrogen concentration. The iterative finite element analysis enabled to calculate the hydrogen distribution accounts for the stress relaxation associated with the hydrogen induced volume and the elastic moduli changes due to hydrogen. Calculation of the interactions between the dislocations accounted for all the stress field due to dislocations and hydrogen atmospheres.

Original languageEnglish
Title of host publicationHydrogen Effects in Materials
PublisherMinerals, Metals & Materials Soc (TMS)
Pages15-34
Number of pages20
Publication statusPublished - 1996
Externally publishedYes
EventProceedings of the 1994 5th International Conference on the Effect of Hydrogen on the Behavior of Materials - Moran, WY, USA
Duration: Sep 11 1994Sep 14 1994

Other

OtherProceedings of the 1994 5th International Conference on the Effect of Hydrogen on the Behavior of Materials
CityMoran, WY, USA
Period9/11/949/14/94

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Birnbaum, H. K., & Sofronis, P. A. (1996). Hydrogen - dislocation interactions. In Hydrogen Effects in Materials (pp. 15-34). Minerals, Metals & Materials Soc (TMS).