MIM of High Temperature Materials

Seal segment in the high temperature zone of an aero-engine turbine made of niobium silicide (NbSi), manufactured using MIM.
© Fraunhofer IFAM

Seal segment in the high temperature zone of an aero-engine turbine made of niobium silicide (NbSi), manufactured using MIM.

Near Net Shape Processing of Difficult to Machine Materials

The use of materials in the temperature range above 1000°C requires particular material resistance. Materials that exhibit sufficient mechanical strengths and corrosion resistance at these temperatures can often only to be machined under intensive tool use and at high cost.

Through the near net-shape manufacture of the respective components, machining is reduced and in some cases completely obsolete. At the same time, the benefits of powder metallurgy can be fully employed, which leads to a homogenous and fine microstructure during sintering.

MIM of materials for turbine components

Examples for high temperature materials for aerospace applications that are processed at Fraunhofer IFAM by MIM are:

  • Nickel-based superalloys
  • Intermetallic materials

Fraunhofer IFAM provides support from the material selection MIM part design and process development through pilot series production along the entire MIM process chain. Our comprehensive facilities include feedstock mixing and preparation, process simulation, injection molding machines, medium-sized industrial debinding and sintering furnaces as well as rheological, thermo-mechanical and metallographic analytics.