Long-range internal stresses in the transition from cell to subgrain structures

R. Sedlacek, S. Straub, A. Borbely, T. Ungar, W. Blum

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

Long-range internal stresses in dislocation cell and subgrain structures are investigated experimentally. The transition of the dislocation structure from cells to subgrains was arranged by deforming Cu polycrystals in compression creep tests at constant stress normalized by the shear modulus in the temperature range from 298 K to 633 K. The internal stresses were measured by evaluating the X-ray line profiles of the {200} Bragg reflections. The results show clearly that long-range internal stresses of the same type exist in the cell as well as in the subgrain structures. An interpretation of this experimental fact is proposed, based on a modification of the composite model. The quantitative predictions of the model are compared with the experimental results.

Original languageEnglish
Pages (from-to)461-466
Number of pages6
JournalMechanical and corrosion properties. Series A, Key engineering materials
Volume97-98
Publication statusPublished - Dec 1 1994
EventProceedings of the 6th International Symposium on Plasticity of Metals and Alloys, ISPMA 6. - Prague, Czech Repub
Duration: Sep 5 1994Sep 9 1994

    Fingerprint

ASJC Scopus subject areas

  • Engineering(all)

Cite this