JETP Letters

, Volume 96, Issue 6, pp 380–384

Effect of the wetting of grain boundaries on the formation of a solid solution in the Al-Zn system

  • O. A. Kogtenkova
  • B. B. Straumal
  • S. G. Protasova
  • A. S. Gornakova
  • P. Ziȩba
  • T. Czeppe
Article

DOI: 10.1134/S0021364012180063

Cite this article as:
Kogtenkova, O.A., Straumal, B.B., Protasova, S.G. et al. Jetp Lett. (2012) 96: 380. doi:10.1134/S0021364012180063

Abstract

Phase transitions in the bulk and at grain boundaries in the (Al-20 wt % Zn) alloy have been studied by means of differential scanning calorimetry and transmission electron microscopy. Polycrystals with a high specific area of grain boundaries have been obtained using severe plastic deformation (high-pressure torsion). It has been shown that the Zn-based solid phase completely wets the grain boundaries in aluminum at a temperature of 200°C. The position of the grain boundary solvus line (solubility line), which is above the bulk solvus by 40–45 K, has been determined.

Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • O. A. Kogtenkova
    • 1
  • B. B. Straumal
    • 1
    • 2
  • S. G. Protasova
    • 1
  • A. S. Gornakova
    • 1
  • P. Ziȩba
    • 3
  • T. Czeppe
    • 3
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovka, Moscow regionRussia
  2. 2.National University of Science and Technology MISISMoscowRussia
  3. 3.Institute of Metallurgy and Materials SciencePolish Academy of SciencesKrakowPoland