Incorporating latent hardening in visco-plastic self-consistent framework for performing texture simulations

Abstract

In the present work, the role of latent hardening on texture evolution at large strains is examined by embedding the latent hardening interaction matrix in the visco-plastic self-consistent framework. All possible interactions between different slip systems are allowed by specifying the 12 × 12 interaction matrix which consists of the relative strength of different dislocation junctions. In particular, the role of colinear junction which is the strongest among all dislocation locks on texture evolution is highlighted. It was observed that texture simulations in the latent hardening mode with a strong colinear lock provided excellent agreement with the experimentally measured textures, whereas isotropic hardening mode (12 × 12-unit matrix) failed to reproduce the experimental textures in a satisfactory manner.

KEYWORDS:

• Latent hardening
• texture
• cross slip
• crystal plasticity

Acknowledgements

The authors would like to thank Texture lab, IIT Kanpur.

Disclosure statement

No potential conflict of interest was reported by the author(s).