Effect of local solid reaction on diffusion-induced stress

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Incorporating the volumetric change due to local solid reaction in the theory of diffusion-induced stress, a general relation is derived among concentration of solute atoms, local reaction product, and mechanical stress. This relation describes the dependence of local stress on the local dilatation created by diffusion of solute atoms and local solid reaction. Assuming that the elastic properties of an isotropic thin plate are constants independent of reaction product and concentration of solute atoms, closed-form solutions of the diffusion-induced deformation fields in the plate are obtained when the plate is free of external stress and subjected to a constant concentration of solute atoms on surface. Local solid reaction significantly increases the stress on the surface of the plate, which can potentially cause structural degradation.

Original languageEnglish
Article number103516
JournalJournal of Applied Physics
Issue number10
StatePublished - May 15 2010

Bibliographical note

Funding Information:
This work is supported by NSF through Grant No. CMMI-0800018.

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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