Design allowables for Ni-based superalloys

As part of the European project MICROMECH, carried out in collaboration with Industria de Turbopropulsores (ITP), the following results have been obtained

  1. Development of a new methodology for experimental characterization at the micro scale. This methodology is based on micropillar compression as a function of grain orientation, strain rate and temperature to be applied on polycrystalline materials to determine the constitutive behaviour for Crystal Plasticity (CP) models at the single crystal level.
  2. Implementation in CAPSUL © software package (a package of crystal plasticity and polycrystalline homogenization simulation tools) of a tool to generate Representative Volume Elements (RVEs) of the microstructure using statistical experimental data.
  3. Implementation in CAPSUL © software package of new features to predict creep behaviour.
  4. Implementation in CAPSUL © software package of scripts to generate and post process fatigue models as well as new CP models for cyclic deformation in order to predict fatigue life.
  5. Tuning and parametrization of CAPSUL © software package to Ni-based superalloys.
  6. Implementation in CAPSUL © software package of a set of tools to include in the RVE models statistical defects (surface roughness, particles and voids). This tool, combined with points 2-5 above will generate allowables in Ni-based superalloys at any temperature and microstructure for monotonic response, creep and fatigue.

For more information about CAPSUL © software package or the results of the MICROMECH project please contact Dr. Javier Segurado (, +34 91 5493422 (ext. 1046))