Institute for Applied Materials – Materials Science and Engineering

ProFeAl – Process development for commercial and efficient turbine components made from iron-aluminides

fracture
Fracture surface of an Fe-Al alloy after tensile testing at 300 °C
microstructure
Microstructure of an Fe-Al alloy

Motivation

FeAl intermetallics show a great potential for applications in challenging components

  • Great oxidation and corrosion resistance in different mediums (vapor, salty atmosphere)
  • Promising mechanical properties, such as specific Young’s modulus, specific strength, high tribological resistance
  • 60 – 80 % density of commercial steels und superalloys
  • Cost-efficient main components of Fe and Al

Objective

  • Evaluation of different alloys based on demand profile
  • Evaluation of casting, forging & additive manufacturing and the interaction between manufacturing, microstructure and material properties

Methods

  • Microstructure analysis
  • Quasistatic experiments and LCF & HCF tests at temperature range from room temperature to 700°C
  • Evaluation of fracture surfaces

Project partners

  • Siemens AG
  • Rolls-Royce Deutschland Ltd & Co KG
  • Max-Planck-Institut für Eisenforschung GmbH
  • Access e.V.
  • Otto Junker GmbH
  • Leistritz AG