Evolution of γ/γ' phases, their misfit and volume fractions in Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy

A. M. Manzoni, S. Haas, J. M. Yu, H. M. Daoud, U. Glatzel, H. Aboulfadl, F. Mücklich, R. Duran, G. Schmitz, D. M. Többens, Syo Matsumura, F. Vogel, N. Wanderka

Research output: Contribution to journalArticle

Abstract

Recently introduced Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy has been investigated in the as-cast state and after heat treatment in a thorough characterization. The combination of optical, scanning and transmission electron microscopy, three dimensional atom probe and x-ray diffraction, both at lab and synchrotron level provides precise information of the microstructural evolution. After the typical dendritic solidification the alloy reveals dendritic cores consisting of γ and γ' phases and interdendritic regions consisting of η and Heusler type phases. Homogenization removes the interdendritic regions and their phases and subsequent annealing produces a microstructure similar to Ni based superalloys consisting of γ/γ' phases. In addition, about 50 μm sized Al-Ni rich needle-shaped precipitates of Heusler type structure can be observed. The four phases and their evolution with heat treatment are investigated in detail. Special focus lies on the γ/γ' misfit determination and the determination of volume fractions by different methods.

Original languageEnglish
Pages (from-to)363-376
Number of pages14
JournalMaterials Characterization
Volume154
DOIs
Publication statusPublished - Aug 1 2019

Fingerprint

Volume fraction
heat treatment
Heat treatment
Microstructural evolution
heat resistant alloys
Light transmission
homogenizing
Synchrotrons
Superalloys
needles
Needles
solidification
Solidification
casts
Precipitates
precipitates
synchrotrons
x ray diffraction
Diffraction
Annealing

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Evolution of γ/γ' phases, their misfit and volume fractions in Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy. / Manzoni, A. M.; Haas, S.; Yu, J. M.; Daoud, H. M.; Glatzel, U.; Aboulfadl, H.; Mücklich, F.; Duran, R.; Schmitz, G.; Többens, D. M.; Matsumura, Syo; Vogel, F.; Wanderka, N.

In: Materials Characterization, Vol. 154, 01.08.2019, p. 363-376.

Research output: Contribution to journalArticle

Manzoni, AM, Haas, S, Yu, JM, Daoud, HM, Glatzel, U, Aboulfadl, H, Mücklich, F, Duran, R, Schmitz, G, Többens, DM, Matsumura, S, Vogel, F & Wanderka, N 2019, 'Evolution of γ/γ' phases, their misfit and volume fractions in Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy', Materials Characterization, vol. 154, pp. 363-376. https://doi.org/10.1016/j.matchar.2019.06.009
Manzoni, A. M. ; Haas, S. ; Yu, J. M. ; Daoud, H. M. ; Glatzel, U. ; Aboulfadl, H. ; Mücklich, F. ; Duran, R. ; Schmitz, G. ; Többens, D. M. ; Matsumura, Syo ; Vogel, F. ; Wanderka, N. / Evolution of γ/γ' phases, their misfit and volume fractions in Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy. In: Materials Characterization. 2019 ; Vol. 154. pp. 363-376.
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