Strain hardening of crystalline materials
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| Format: | Artículo científico |
| Langue: | en |
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Universidad San Francisco de Quito
2010
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| _version_ | 1876460493552484352 |
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| author | Edison A. Bonifaz |
| author_facet | Edison A. Bonifaz |
| contents | Strain hardening of crystalline materials Edison A. Bonifaz Multidisciplinaria (Ciencias Naturales y Exactas) Dislocations grain boundary finite element method polycrystalline behavior To describe the work hardening process of crystalline materials in uniaxial deformation, a gradient-one-internal-variable model (GM1) constructed in the basis of the Kocks-Mecking model is proposed. The time and temperature dependence of flow stress is accounted via grain boundary migration, and the migration is related to annihilation of extrinsic grain boundary dislocations (EGBD’s) by climb via lattice diffusion of vacancies at the triple points. To model the polycrystalline behavior of commercially pure nickel (from a composite point of view) by means of the finite element method, virtual specimens with dimensions in the range 3 - 25 um should be used. 2010 artículo científico 1390-5384 https://www.redalyc.org/articulo.oa?id=726180822013 en http://www.redalyc.org/revista.oa?id=7261 Avances en Ciencias e Ingenierías application/pdf Universidad San Francisco de Quito Avances en Ciencias e Ingenierías (Ecuador) Num.2 Vol.2 |
| format | Artículo científico |
| id | redalyc_726180822013 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidad San Francisco de Quito |
| spellingShingle | Strain hardening of crystalline materials Edison A. Bonifaz Multidisciplinaria (Ciencias Naturales y Exactas) Dislocations grain boundary finite element method polycrystalline behavior Strain hardening of crystalline materials Edison A. Bonifaz Multidisciplinaria (Ciencias Naturales y Exactas) Dislocations grain boundary finite element method polycrystalline behavior To describe the work hardening process of crystalline materials in uniaxial deformation, a gradient-one-internal-variable model (GM1) constructed in the basis of the Kocks-Mecking model is proposed. The time and temperature dependence of flow stress is accounted via grain boundary migration, and the migration is related to annihilation of extrinsic grain boundary dislocations (EGBD’s) by climb via lattice diffusion of vacancies at the triple points. To model the polycrystalline behavior of commercially pure nickel (from a composite point of view) by means of the finite element method, virtual specimens with dimensions in the range 3 - 25 um should be used. 2010 artículo científico 1390-5384 https://www.redalyc.org/articulo.oa?id=726180822013 en http://www.redalyc.org/revista.oa?id=7261 Avances en Ciencias e Ingenierías application/pdf Universidad San Francisco de Quito Avances en Ciencias e Ingenierías (Ecuador) Num.2 Vol.2 |
| title | Strain hardening of crystalline materials |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Dislocations grain boundary finite element method polycrystalline behavior |
| url | https://www.redalyc.org/articulo.oa?id=726180822013 |