Journal of Materials Science

, Volume 42, Issue 12, pp 4205–4214 | Cite as

Intermetallic Fe x Al y -phases in a steel/Al-alloy fusion weld

  • Leonardo Agudo
  • Dominique Eyidi
  • Christian H. Schmaranzer
  • Enno Arenholz
  • Nasrin Jank
  • Jürgen Bruckner
  • Anke R. Pyzalla


The microstructure of joints between an Al-alloy and a zinc coated ferritic steel sheet manufactured by the so-called CMT joining method is investigated. The joint consists of a weld between the Al-alloy and Al 99.8 filler and a brazing of the filler to the zinc coated steel. The morphology, the structure and the defects of the intermetallic phases that developed at the interface between the steel and the Al 99.8 filler are characterised using scanning and transmission electron microscopy. The intermetallic phase seam is only about 2.3 μm thick and consists of trapezoidal nearly equiaxial Fe2Al5 grains surrounded by finger-like remains of the steel and mostly elliptical FeAl3 grains extending into the Al 99.8 filler material. Both the Fe2Al5 and the FeAl3 grains contain crystal defects.


Welding Steel Sheet Diffusion Couple Friction Stir Welding Intermetallic Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Financial support from the Hochschuljubiläumsstiftung der Stadt Wien (grant ( H-175/2001) is gratefully acknowledged by one of the authors (D Eyidi). Further we wish to thank A Leitner, voestalpine Stahl GmbH and R Rechberger, voestalpine mechatronics GmbH for the preparation of the samples.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Leonardo Agudo
    • 1
    • 2
  • Dominique Eyidi
    • 3
    • 4
  • Christian H. Schmaranzer
    • 5
  • Enno Arenholz
    • 5
  • Nasrin Jank
    • 1
    • 6
  • Jürgen Bruckner
    • 6
  • Anke R. Pyzalla
    • 1
    • 2
  1. 1.TU Wien, Institute of Material Science and TechnologyViennaAustria
  2. 2.Max-Planck-Institute for Iron Research GmbHDüsseldorfGermany
  3. 3.TU Wien, University Service for Transmission Electron MicroscopyViennaAustria
  4. 4.Laboratoire de Métallurgie Physique UMR 6630 CNRS–Université de PoitiersChasseneuil Futuroscope CedexFrance
  5. 5.Voestalpine Stahl GmbHLinzAustria
  6. 6.Fronius International, Sparte SchweißtechnikWelsAustria

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