To view the poster program please click here

Back to overview

Lecture

Grain boundary phase transitions in the W–Ni alloys

Thursday (27.09.2018)
17:30 - 17:45 S1/03 - 223
Part of:


The aim of this work is thestudy of grain boundary wetting phase transitions in the binary W –Ni alloys. Influence of the alloys composition and annealing temperature on the structure of grain boundaries has been investigated. The study was carried out by means of high-resolution electron microscopy (HREM) and analytical electron microscopy. Different kinds of wetted GBs were revealed by HREM, namely (i) “dry” GBs (incomplete wetting), (ii) GBs with thick (complete wetting) and (iii) thin layers of bulk Ni-rich phase (pseudo-incomplete wetting). The continuation of tie-line of the GB wetting phase transition into one-phase (W) area is constructed in the bulk W–Ni phase diagram. Authors thank the Russian Foundation for Basic Research (contract 18-03-00284) for the financial support.

Speaker:
Dr. Andrey Mazilkin
Karlsruhe Institute of Technology (KIT)
Additional Authors:
  • Prof. Boris Straumal
    Karlsruhe Institute of Technology (KIT)
  • Dr. Svetlana Protasova
    Institute of Solid State Physics Russian Academy of Sciences
  • Dr. Alexander Straumal
    Institute of Solid State Physics Russian Academy of Sciences
  • Dr. Brigitte Baretzky
    Karlsruher Institut für Technologie (KIT)