Cryogenic materials, Alloy development for extreme environments (Liq. H2, Cryo-fatigue, Hydrogen embrittlement), Phase transformations, Martensitic transformations, especially reversible phase transformation (B-TRIP), Deformation behaviour & plasticity mechanism, Advanced high-Mn TRIP/TWIP steels, In-situ mechanical testing (Tensile/Fatigue), High-throughput neutron diffraction, High-energy synchrotron diffraction, Microstructure–property relationships, Surface engineering