Szczegóły publikacji
Opis bibliograficzny
Modeling of microstructure evolution of BCC metals subjected to severe plastic deformation / Dmytro SVYETLICHNYY, Janusz MAJTA, Krzysztof MUSZKA // Steel Research International ; ISSN 1611-3683 . — Tytuł poprz.: Steel Research. — 2008 — [vol. 79] spec. ed., s. 452–458. — Bibliogr. s. 458, Abstr. — Zastosowano procedurę peer review. — Metal Forming 2008 : proceedings of the 12th international conference on Metal forming : Kraków, Poland, September 21.–24.2008, Vol. 2 / eds. Maciej Pietrzyk, [et al.]. — Düsseldorf : Verlag Stahleisen GmbH, cop. 2008 + CD-ROM [doł. do Vol. 1.]. — ISBN 978-3-514-00754-3
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 40615 |
|---|---|
| Data dodania do BaDAP | 2008-10-09 |
| Rok publikacji | 2008 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Steel Research International |
Abstract
Prediction of microstructure evolution and properties of ultrafǐne-grained materials is one of the most significant, current problems in materials science. An interest to apply the cellular automata (CA) to the simulation of different phenomena in materials has been rising recently,. The main asset of the CA is the ability for accurate modeling of the microstructure. Deformation in micro-scale shows anisotropy, which is related with the different crystallographic orientation of the grains in poly cry stalls. To improve the accuracy of modeling, CA and FEM must be combined with crystal plasticity theory. In present model, deformation in macro-scale is transferred to meso-scale, where a representative element contains several, score or hundreds grains, and then is applied in micro-scale to each grain. Strain and strain rate are decomposed into the crystallographic directions. For each crystallographic direction, development of dislocation and subgrain boundaries are considered. In each grain development of dislocation structure is distinctive because their orientation is unique. Creation of low-angle boundaries and their development into high-angle boundaries are simulated by the cellular automata on the base of calculations using finite element method and crystal plasticity theory. The idea presented in this study and particular solutions are discussed for the case of ultrafine-grained microalloyed and low-carbon steel.
