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A theoretical approach to finite strain superplasticity and some of its applications
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| DOI | 10.1088/0031-8949/81/05/055601 | ||||
| Año | 2010 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
The plastic flow of a polycrystal is analyzed assuming grains so fine that the rate-limiting process is grain boundary sliding, and grains readily accommodate their shapes by slip to preserve spatial continuity. We derive a closed-form constitutive equation relating strain, strain rate, stress and temperature that fits the experiment within the experimental uncertainties. The results are applied to titanium and aluminium superplastic alloys to show how the theory can shed light on the phenomena taking place inside the material when being superplastically stretched and why it finally breaks.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | LAGOS-INFANTE, MIGUEL ANGEL | Hombre |
Universidad de Talca - Chile
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| 2 | Retamal, Cesar | Hombre |
Universidad de Talca - Chile
Univ Paris Ouest Nanterre La Def - Francia Université de Paris Ouest - Francia Laboratoire de Thermique Interfaces et Environnement - Francia |
