Possible Role of Deformation‐Induced Point Defects in Dislocation Patterning

Authors

Y. Estrin, Hamburg University of Technology
C. Abromeit, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
E. C. Aifantis, Michigan Technological UniversityFollow

Document Type

Article

Publication Date

1-1-1990

Department

Department of Mechanical Engineering-Engineering Mechanics

Abstract

The evolution of dislocation density is considered by taking into account the effect of deformationinduced point defects on the dislocation annihilation (recovery) rate. It is shown by linear stability analysis of the coupled equations describing the evolution of the dislocation density and the diffusion of point defects that a periodic spatial pattern can form during plastic deformation. The preferred wavelength of the emerging periodic structure is evaluated as a function of the production and annihilation bias parameters reflecting certain asymmetries in the generation and annihilation of interstitials and vacancies in the course of straining.

Publisher's Statement

Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA. Publisher’s version of record: https://doi.org/10.1002/pssb.2221570110

Publication Title

physica status solidi (b)

Recommended Citation

Estrin, Y., Abromeit, C., & Aifantis, E. (1990). Possible Role of Deformation‐Induced Point Defects in Dislocation Patterning. physica status solidi (b), 157(1), 117-128. http://doi.org/10.1002/pssb.2221570110
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3882