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Frontiers of Materials Science

, Volume 12, Issue 3, pp 322–326 | Cite as

The currently predominant Taylor principles should be disregarded in the study of plastic deformation of metals

  • Weimin Mao
Research Article
  • 12 Downloads

Abstract

The original Taylor principles offer identical intergranular strain equilibrium without stress equilibrium in metals during deformation. In reality, however, the stress and strain equilibria are maintained individually for different grains. As key points, the principles have become a prerequisite predominantly in the current theories, which unreasonably indicate that strains instead of stresses induce grain deformation despite reaching the stress equilibrium by complicated combinations of the activation of slip systems or other crystallographic mechanism via different approaches. Real intergranular equilibria can be traced if mechanical interactions together with the external loading are considered step by step. In this work, several penetrating and non-penetrating slips were used to obtain the necessary elastic and plastic strain tensors of different grains in a natural manner. Without the Taylor principles, the stress and strain equilibria can be reached naturally, simply, easily, reasonably, and individually without complicated calculations. Results of the experimental observation conformed with the predicted deformation texture when certain important engineering stress conditions are included in the simulation. Therefore, the Taylor principles for plastic deformation of polycrystalline metals should now be disregarded.

Keywords

deformation Taylor principles stress equilibrium strain equilibrium texture 

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Notes

Acknowledgement

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51571024).

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Materials and MetallurgyInner Mongolia University of Science and TechnologyBaotouChina
  2. 2.State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijingChina

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