A NEW APPROACH TO CRYSTAL SPIN CALCULATION DURING DEFORMATION TEXTURE DEVELOPMENT

R.E. Bolmaro, A. Fourty, A. Roatta, M.A. Bertinetti and J. Signorelli

Instituto de Física Rosario - Fac. de Ciencias Exactas, Ingeniería y Agrimensura. Consejo Nacional de Investigaciones Científicas y Técnicas, Bv. 27 de febrero 210 bis, 2000, Rosario, Argentina. 
bolmaro@ifir.ifir.edu.ar

Abstract:

The paper presents a simple simulation model for intra-grain misorientations and texture development during plastic deformation. The model is presented as an improvement over viscoplastic self-consistent models and its main features are assessed by comparison with experiments and FEM results. The effectiveness of the model to simulate textures is quite unexpected due to its simplicity. However, a detailed analysis of its microscopic consequences shows that the model is able to empirically capture the main characteristics of grain fragmentation during plastic deformation. A brief discussion of different levels of heterogeneity, as an introduction to the model, is used to ground the approach and to settle its capabilities.