Use Cases FM Steels

Use Cases: Ferritic-Martensitic (FM) Steels

Ferritic-Martensitic steels (e.g. Eurofer97, F82H, T91) are primary structural material candidates for nuclear fusion and fission reactor components due to their excellent radiation resistance and reduced activation characteristics.

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Relevance to UPXO

FM steels exhibit hierarchical lath-based microstructures (prior austenite grains → packets → blocks → laths) which require specialised grain structure generation approaches. UPXO supports:

• Prior austenite grain structure generation (MCGS2D/3D, Voronoi)
• Hierarchical lath microstructure generation (pxtal/FMSteels.py)
• Representative volume element (RVE) construction for FE simulations
• Microstructure evolution under irradiation

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Hierarchical Microstructure Generation

UPXO includes dedicated support for FM steel lath microstructures via pxtal/FMSteels.py.

Detailed workflow to be populated.

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Typical Grain Structure Parameters

To be populated with material-specific Monte Carlo and lath generation parameters.

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References

To be populated as publications become available.