Paper Title:
Plastic Deformation of Zr-Based Alloys at Temperatures of Phase Transformations
  Abstract

Deformation behavior of Zr-Nb alloys under uniaxial compression, accompanied by phase transformations, is considered by the example of Zr-1%Nb and Zr-2.5%Nb alloys. Model samples were deformed at temperatures of β- and (α+β)-regions of the phase diagram Zr-Nb. Mechanisms, responsible for plastic deformation of alloys by different temperature-rate regimes, were determined on the basis of textures, arising in deformed samples. Among these mechanisms there are crystallographic slip in grains of β-Zr and α-Zr as well as mutual displacements of crystallites along interphase boundaries. The latter mechanism sharply intensifies under conditions of α↔β phase transformations and lies in the basis of superplasticity. An input of each mechanism into plastic deformation of material depends on the temperature-rate regime of compression and determines its anisotropy.

  Info
Periodical
Edited by
P. B. Prangnell and P. S. Bate
Pages
637-642
DOI
10.4028/www.scientific.net/MSF.550.637
Citation
M. Isaenkova, Y. Perlovich, V. Fesenko, T. Z. Htike, S. Kropachev, S. Akhtonov, V. Filippov, "Plastic Deformation of Zr-Based Alloys at Temperatures of Phase Transformations", Materials Science Forum, Vol. 550, pp. 637-642, 2007
Online since
July 2007
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