The strains produced by precipitation in alloys | Zendy

F. R. N. Nabarro | Zendy

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The strains produced by precipitation in alloys

Author(s) -

F. R. N. Nabarro

Publication year - 1940

Publication title -

proceedings of the royal society of london a mathematical and physical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.814

H-Index - 135

eISSN - 2053-9169

pISSN - 0080-4630

DOI - 10.1098/rspa.1940.0072

Subject(s) - precipitation , supersaturation , alloy , particle (ecology) , materials science , diffusion , strain (injury) , phase (matter) , surface energy , chemical physics , strain energy , crystallography , metallurgy , thermodynamics , chemistry , composite material , physics , geology , medicine , oceanography , organic chemistry , finite element method , meteorology

If the process of diffusion in metals results simply in the interchange of pairs of atoms large strains must be set up when a new phase precipitates in an alloy. The strain energy involved is calculated for particles of precipitate of various shapes, and is found to be least if the precipitate forms thin plates. The shape of the particle actually formed is influenced by this energy, by the degree of supersaturation of the solid solution, and by surface effects; the calculated shape is shown to agree reasonably well with that observed experimentally.

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