Journal of Materials Science

, Volume 46, Issue 12, pp 4349–4353 | Cite as

Inversed solid-phase grain boundary wetting in the Al–Zn system

  • S. G. Protasova
  • O. A. Kogtenkova
  • B. B. Straumal
  • P. Zięba
  • B. Baretzky
IIB 2010


The microstructure of binary Al–10 at% Zn and Al–15 at% Zn alloys after long anneals (800–4000 h) was studied between 190 and 258 °C. The contact angles between (Zn) particles and (Al)/(Al) grain boundaries (GBs) were measured. They decrease with decreasing temperature. First (Al)/(Al) GBs completely wetted by the second solid phase (Zn) appear below T wsAl0% = 205 ± 5 °C. Above T wsAl0% = 205 ± 5 °C all (Al)/(Al) GBs are incompletely wetted by (Zn) solid phase. The extrapolation of the maximal contact angle θ to zero permits to obtain the T wsAl100% = 125 ± 10 °C. Below this line all (Al)/(Al) GBs has to be completely wetted by (Zn) solid phase.


Contact Angle Triple Junction Transmission Electron Microcopy Bulk Phase Diagram Metastable Liquid Phase 



Authors thank the Russian Foundation for Basic Research (contract 09-03-92481) and Israel Ministry of Science (project 3-5790) and the Program of bilateral cooperation between Russian and Polish Academies of Sciences for the financial support. Authors cordially thank Prof. E. Rabkin, Prof. R. Valiev, Prof. T. Langdon and Dr. A. Mazilkin for stimulating discussions, Mr. A. Nekrasov for the help with SEM and EPMA measurements.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • S. G. Protasova
    • 1
    • 2
  • O. A. Kogtenkova
    • 1
  • B. B. Straumal
    • 1
    • 2
    • 4
  • P. Zięba
    • 3
  • B. Baretzky
    • 4
  1. 1.Institute of Solid State Physics Russian Academy of SciencesChernogolovkaRussia
  2. 2.Max-Planck Institut für MetallforschungStuttgartGermany
  3. 3.Institute of Metallurgy and Materials Science, Polish Academy of SciencesCracowPoland
  4. 4.Karlsruher Institut für Technologie (KIT), Institut für NanotechnologieEggenstein-LeopoldshafenGermany

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