Model of Polycrystalline Inelastic Deformation with Grain Boundary Sliding Description

Abstract:

The paper deals with three-level model of polycrystal inelasticity based on crystal plasticity. This model allows to regard the most important inelastic deformation mechanisms of polycrystals including grain boundary sliding. The inflow of intragranular dislocations, changing of the boundary structure under realization of grain boundary sliding and diffusion processes are taken into account in equations for grain boundary sliding. Consistency conditions of constitutive relations at the different scale levels are used in constructing model. The results of computational experiments under uniaxial tension of a representative volume are obtained with developed model. The results show that grain boundary sliding is important and must be taking into account.

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 86-91
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.86
• Online since: September 2014
• Authors: Petr V. Trusov, Alexey I. Shveykin*, Elvira R. Sharifullina, Nikita S. Kondratev
• Keywords: Crystal Plasticity, Grain Boundary Sliding, Internal Structure Evolution, Multilevel Models, Structural Superplasticity

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