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Lecture

Trace elements influencing the lattice parameters in the Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy

Wednesday (26.09.2018)
17:15 - 17:30 S1/01 - A5
Part of:


Single phase high entropy alloys, as predicted in the early 2000s, have been completed by compositionally complex alloys with two or more phases. It has been found that the Al10Co25Cr8Fe15Ni36Ti6 alloy stands out for its good mechanical properties, due to its main gamma-gamma' morphology which is comparable to Ni- and Co-based superalloys. In order to enhance the alloy's properties, B, Hf, Mo or Zr are added as trace elements and their influence on the microstructure and the hardness is studied by scanning and transmission electron microscopy, and x-ray diffraction. One important factor for the enhancing is the difference in lattice parameter of the gamma and the gamma prime phase. These are measured by synchrotron radiation. This work focuses on the influence of 0.5 % B, 0.5 at.% Hf, 1 at.% Mo or 0,5 at. % Zr.

Speaker:
Dr. Anna Manzoni
Helmholtz-Zentrum Berlin für Materialien und Energie
Additional Authors:
  • Sebastian Haas
    University of Bayreuth
  • Felix Dubois
    Helmholtz-Zentrum Berlin für Materialien und Energie
  • Christoph von Schlippenbach
    Helmholtz-Zentrum Berlin für Materialien und Energie
  • Cafer Tufan Cakir
    Helmholtz-Zentrum Berlin für Materialien und Energie
  • Prof. Dr. Marwan Mousa
    Mu'tah University
  • Prof. Dr. Uwe Glatzel
    University of Bayreuth
  • Dr. Nelia Wanderka
    Helmholtz-Zentrum Berlin für Materialien und Energie